Over the 30 years that have passed since their debut record, Pink Floyd have remained unchallenged as the rock world's premier live attraction. In this unique and comprehensive four-part series, Mark Cunningham traces the development of the Floyd's live sound and talks to the key personnel who have contributed to some of the greatest shows on Earth.

When Pink Floyd embarked on their most recent jaunt around the world with the 1994 Division Bell tour, no less than 53 articulated trucks were required to transport the PA and lighting systems, projection equipment, staging, and all the additional elements which went into what has so far been acclaimed as the benchmark touring production of the '90s. By contrast, at the time of the band's first single, "Arnold Layne", in the spring of 1967, they traversed the country in a humble van.

Given the musical sophistication of their later years, it is equally difficult to conceive of Pink Floyd as a run-of-the-mill R&B combo, and yet this is precisely how they began when they were formed at the Regent Street Polytechnic School of Architecture in 1965 as The Abdabs by bassist Roger Waters, keyboard player Rick Wright, and drummer Nick Mason and several others. Like most bands of their time, their early repertoire consisted mainly of R&B and pop covers, and was broadened when guitarist, singer, and Bo Diddley fan Roger "Syd" Barrett arrived in the line-up, conjuring their new name: The Pink Floyd Sound. Within a year, Barrett blossomed as a songwriter, producing whimsical numbers such as "Candy And A Currant Bun", which would steer the band in a new direction.

Soon to drop the redundant suffix (and the definite article),their live set began to feature extended, feedback-drenched instrumental "freak-outs", largely dominated by Barrett's guitar experimentation's and Wright's Stockhausen-flavoured organ solos. Arguably, the biggest influence on the band's development at the forefront of the psychedelic revolution was Barrett's appetite for a certain hallucinogenic substance. Musically, however, he relied heavily on his echo box and slide techniques, often involving ball bearings, plastic rulers or a Zippo lighter, to achieve his eclectic blend of guitar effects, while the other band members experimented with similar flair. You had to be there.

By early 1967, Pink Floyd had secured both an EMI record deal and an enviable following as the darlings of London's underground scene with their "free-form", jazz-inspired, psychedelic noodlings, frequently accompanied by strange film sequences which were projected onto the band along with "liquid (colored oil slide) movies" -- the product of experimental Lighting Designer Mike Leonard. Even at this early juncture, while their contemporaries were busy playing at pop stars, the Floyd placed little emphasis on themselves as performers, preferring to give audiences an experience that relied on this interaction of sound, light and atmosphere. Numbers like "Interstellar Overdrive", which often lasted one hour, were based around one riff or chord and, like rave music more than 20 years later, they sent audiences on a magnificent sensory journey.

"Interstellar Overdrive", was, in fact, one of the titles performed by the Floyd at their "Games For May" at London's Queen Elizabeth Hall on May 12 1967, an event set up by their managers Andrew King and Peter Jenner of Blackhill Enterprises, and promoted by classical promoter Christopher Hunt. Not only did this mark the first appearance at the hall of what was essentially a pop band, this "happening" also marked the first appearance in Britain of a rudimentary quadraphonic PA system, effected by additional speakers erected around the room and an early version of an amazing device, which has now gone down in Floyd folklore as the "Azimuth Coordinator". This elaborate name was given to what was essentially a crude pan pot device made by Bernard Speight, an Abbey Road technical engineer, using four large rheostats which were converted from 270 degree rotation to 90 degree. Along with the shift stick, these elements were housed in a large box and enabled the panning of quadraphonic sound.

To augment the music, Waters rented a basement in Harrow Road to record a number of effects tapes on a Ferrograph. These sounds included backwards cymbals, distorted percussion, and fake birdsong, and were played around the audience as the band performed. Waters explained at the time: "The sounds travel around the hall in a sort of circle, giving the audience an eerie effect of being absolutely surrounded by this music." From this point onwards, it seemed, the Floyd were destined to become pioneers in live sound.

Little in terms of purpose-designed PA technology existed before 1967, the only options open to the Floyd being Vox or Selmer columns and 100 Watt amps. Therefore, when Charlie Watkins designed his first WEM single column PA, the Floyd took it to their hearts, and it remained with them for the next four years. The Floyd's system was based around the WEM B and C cabinets. The B cabinet housed four 12-inch Goodmans 301 twin cone speakers, while the C cabinet had four 12-inch Goodmans Audiom 61s. Pinned in between the B and C cabinet was an X32 horn in a narrow column. To drive the system, the Floyd used WEM amplification, and Road Manager/Sound Engineer Peter Watts mixed with four small five-channel WEM Audiomaster consoles whose comparatively primitive functions included bass, treble, and middle controls, presence and input sensitivity. This was the state of the art back in the late '60s.

WEM founder and PA designer Charlie Watkins, who toured with the Floyd during this period, says of their introduction to his system: "A similar PA of mine had debuted at the Windsor Jazz & Blues Festival in August 1967, and in the following month, Pink Floyd played through one at the Roundhouse in Chalk Farm, and were immediately impressed, because it was the only proper PA system capable of taking more than 100 Watts. They soon invested in a system, and as they earned more money, they began to duplicate the amount of equipment until they owned the most sophisticated PA in the country."

Armed with this state-of-the-art system, the Floyd -- now with ex-Jokers Wild and Bullitt singer/guitarist David Gilmour who replaced his drug-damaged pal Syd Barrett in March 1968 -- staged concerts, which were promoted as "sonic experiences", and toured in 1969 with their "Massed Gadgets Of Auximenes" extravaganza. A newspaper review of the final date of this British tour described the performance as including "electronic and stereophonic effects thrust around [the Royal Albert Hall] from a battery of boxes and speakers. Edge of the world sounds shiver; footsteps clump around the dome; voices whisper; a train thunders; a jungle erupts."

Of an earlier concert at the Royal Festival Hall that April, Nick Mason was quoted as saying: "The Azimuth Coordinator system might have been improved if we had simplified it by having four speakers 'round the hall instead of six. I am sure a lot of people couldn't differentiate between each speaker. If we can develop this kind of thing into an even bigger and better stage without getting too technically involved, we will be going in the right direction." He would not have too long to wait.

Meanwhile, Peter Watt's small crew (including Bobby Richardson, Brian Scott, and Lighting Engineer Arthur Max) was joined by roadie Seth Goldman, who began working for the band on their September- October 1970 "Atom Heart Mother" tour of America and years later would become their dedicated monitor engineer. Apart from the photograph on the reverse side of 1969's "Ummagumma" album sleeve, the best evidence of the touring equipment favored by Pink Floyd in the late '60s and early '70s is the Adrian Maben film "Live at Pompeii", which was shot in the summer of 1971 and shows the band's WEM system in all its glory. But the end of that year witnessed a complete turnaround.

In 1971, Peter Watts became involved with audio pioneers Bill Kelsey and the late Dave Martin. It was Martin who allegedly followed a design by future Turbosound founder Tony Andrews and built the first bass bin, which revolutionized PA technology. Martin, who had built his first bass reflex cabinet at the age of 15, made a failed attempt at designing a 4 by 15-inch bin with a detachable flare before producing his definitive 800 Watt flanged 2 by 15-inch. The laws of physics now began to govern live performance audio and instead of literally adding more cabinets for extra reinforcement, bands were able to "throw" their sound much further by using a combination of the bass bin concept and Vitavox "voice of the theatre" horns.

In the May of that year, during a break from their "Atom Heart Mother" tours and sessions for the "Meddle" album, Pink Floyd hired the Wandsworth Granada [venue] to evaluate a new two-way passive Bill Kelsey system, which initially incorporated seven-foot, 500-lb. RCA "W" cabinets before switching to Martin's 2 by 15-inch bass bin. Kelsey, who had already built PAs for King Crimson and ELP, recalls: "What happened was indicative of the way the Floyd used to do business in the days when they were more of a cult band. Peter Watts and Steve O'Rourke (Floyd's manager) said they'd like to try a system so I went down with all the gear, and then found there was another PA company there and that it was to be an A/B test. Feeling a bit miffed that I hadn't been told, I set up the gear as did the other company, and they tried it out with the mixing console at the back of the hall.

"It seemed to be going all right, but Peter said, 'To be quite frank, I'm disappointed... it's rubbish.' And Steve cut in, 'You realize you've wasted my whole day, not to mention the cost of the hall.' Peter continued to push up one fader to produce this horrid, muffled sound, while the second fader produced a nice, clear sound. I just wanted the ground to open up. Suddenly they both burst into laughter and admitted they'd crossed the whole thing over." Despite the elaborate wind-up, Kelsey's system was taken on board at the beginning of the following year.

Recorded over the course of seven months with the working title of "Eclipse (A Piece For Assorted Lunatics)", "The Dark Side of the Moon" catapulted Pink Floyd from their enigmatic cult status to the stadium rock elite. Released in March 1973, it signified the first major switch from their earlier psychedelic formula and set a new precedent for record production which Floyd continued to build upon. As was the case for many bands who molded their material on the road for some time before committing it to tape, the Floyd performed an embryonic version of "Dark Side" both prior to and during their sessions at Abbey Road throughout the whole of 1972.

The live rehearsals for this new concept piece were initially held in January 1972 at the now-defunct Rainbow Theatre in London's Finsbury Park, and they were notable for both the first use of their new sound and light systems, and the introduction of a new team member. Mick Kluczynski had worked with a number of Scottish bands since 1965, one of whom received an offer to record in London in 1971 as Cliff Bennett's backing band. Kluczynski accompanied them but the whole deal soon fell to pieces. One of the band members, Chris Adamson, survived by working as a Floyd roadie and arranged for Kluczynski to also join their small team as part of the "Quad Squad".

"There was no formal crew, just four of us loosely employed to handle all aspects of the sound and rigging," says Kluczynski. "My first job was to empty the tour manager's garage, which was full of all the old WEM PA columns and return them to Charlie Watkins, because we had just taken delivery of the latest generation of PA. The 2 by 15-inch bins had a Vitavox horn on the top and a JBL 075 bullet super tweeter -- I used to carry these things on my back up into balconies! When we played the first Earls Court show, we used our maximum number of Kelsey and Martin bins and horns. The bins were three high, with 13 at each side of the stage, and in the center piece where there were bins missing was a column of JBL horns. On top of those, we had a row of double Vitavox horns, on the back of which were throats that we had made up, which took two ElectroVoice 1829 drivers in the same throat. ElectroVoice claimed it wouldn't work, but we got up to four in one throat. One quad section would drive two horns in one phase direction, and another quad section would drive another two in the opposite phase direction. But EV wouldn't believe it until they saw 15,000 people walk out of Earls Court at the end of the night dazed and speechless."

In an A/B text during rehearsals, the band's existing WEM amplifiers came second place to the new American Phase Linear models, discovered by Kelsey, and so yet another injection of quality was given to their PA. It was common for Pink Floyd to modify off-the-shelf equipment for their own purposes, thereby creating unique products. Along with Crown and BGW, Phase Linear became one of the few brands of amplification taken seriously by the top touring bands of the early '70s. Whilst the Phase Linear 400 and 700 models were taken on board by the Floyd, because of their superior sound quality, in their regular domestic format they were unfit for the rigors of the road due to their slight physical construction and the weight of the transformers on their chassis. To compensate for this, the band's technicians designed a new metal chassis into which the amp would fit, while the mains transformer was removed from the amp and supported horizontally on the outside of the chassis.

Acclaimed by critics as "rock's first conceptual masterpiece", "The Dark Side of the Moon" was premiered as "Eclipse" over the four nights of February 17-20 at the Rainbow, by which time the band had been touring in the UK with their new system for a month. The standard show at the time consisted of two sets: the first featured earlier numbers such as "Set The controls For The Heart Of The Sun", "Careful With That Axe Eugene", and "Echoes"; the second consisted of what was to later be known as "The Dark Side of the Moon" (then without the "Eclipse" finale which was yet to be written). "One Of These Days" was reserved as a breathtaking encore. These previews of the forthcoming album amounted to something of a bootleggers' paradise. A poor live recording of "Dark Side" was available through the German black market for around a year prior to the studio album's release, and although the band were horrified, it could be said that this created even more interest in the real thing.

Kluczynski recalls that his first show as a crew member, the opening night of this tour at the Brighton Dome, ended in disaster. He says, "In those days, we didn't understand how to separate power sufficiently between sound and lights. That was the only show that we had to cancel and reorganize, because we were all sharing the same power source. The Leslies on stage sounded like a cage full of monkeys, because they were sharing a common earth. It was the very first show that any band had done with a lighting rig that was powerful enough to make a difference. So we had this wonderful situation where the fans were actually inside the auditorium, and we had Bill Kelsey and Dave Martin at either side of the stage screaming at each other in front of the crowd, having an argument."

Another vital piece of kit added to the Floyd inventory at this time was a 24-channel mixing console manufactured by Ivor Taylor and Andy Bereza of Allen & Heath, a new company which took its name from a defunct toolmaking firm. Bereza, the man responsible for inventing what became the Portastudio, originally built mixers at home in the late 1960s under the trading name of AB Audio and was responsible for the board used in the live soundtrack recording of the cult movie "A Clockwork Orange", as well as mixers for bands including The Bee Gees. The Allen & Heath business grew steadily in its first year with its small six-channel boards, many of which were used in cathedrals, churches, and small theaters, as part of installed public address systems. Then an opportunity arose for the company to build a quadraphonic desk for The Who, news of which filtered into the Floyd camp, and an order was placed for a custom quad board in advance of the first "Dark Side" rehearsals.

Future Floyd Production Director Robbie Williams, who joined the crew in January 1973 just as Seth Goldman took a long break to work with ELP, Three Dog Night, and T. Rex, remembers his first sighting of the desk. "This board was actually the reason for my involvement with the band. I was a friend of Peter Watts and had always been interested in the audio business. One day in November 1972, I went 'round to his flat to see him in the process of taking this console to bits and rebuild it in time for some shows with the Roland Petit Ballet in France the following January. To me at the time, it was the most magnificent piece of electronics, about the size of my coffee table. Peter had bought the very first Penny & Giles quad panners on the market, and I spent the next month helping him rebuild this thing."

The quad function on this desk was given the name "Sound-In-The- Round", and unlike conventional quad, the speakers were positioned front, back, left, and right in a diamond, with the front channel situated behind the band. On the desk, any channel could be routed into the quad section, which was operated via the pair of joysticks on the right of the board. The quad function, however, came into use as an enhancement for sound effects or occasional solos.

Williams, who in the late '60s earned his roadie stripes through working for the seminal lighting company Krishna Lights, says: "After helping Peter get the desk match fit, I asked him, 'Does this mean I'm part of the crew?' To which he replied, 'Well, I guess you'd better come out to Paris and give us a hand, just in case anything happens to the desk.' And it went from there. When I joined, the crew consisted of Peter, Mick, Chris Adamson, Graeme Fleming, Robin Murray, and Arthur Max. I was very much the under-assistant truck packer for the PA department, and through the '70s as Pink Floyd's fame grew, so did my responsibilities."

Kluczynski says of the Allen & Heath mixer: "It did tend to be a little unreliable, but it kept going, even though Seth Goldman and I would each have to take a corner and jolt it into life every day! We'd even driven it with truck batteries at the Rainbow during the power strikes. We would be in Newcastle one night and have to nip back to London to get it fixed in the middle of the night, and then travel back up to Sheffield or somewhere for the next gig. The quad panner for the second Allen & Heath desk we used [built in the bottom of a lift shaft in Hornsey in 1973] was actually made from cut Elastoplast cans and there was a read-out panel in the middle, which was a circle with quadrants in it. As you panned, you could see the quadrant you were in which pulsed from green to red. When you removed this panel and looked underneath it, you saw that these Elastoplast cans had been cut to make a spiral in which the LEDs were inserted to give you the pulse reading."

This was not the only amazing do-it-yourself story... "Around late 1974, we bought a Sony hi-fi crossover, but before that we were running the PA full-range," says Kluczynski. "The only protection Bill Kelsey put in for the high end was through having crossovers built into Old Holburn tins and placed inside the cabinets. In the more sophisticated version, there was a light bulb in line. If you were to overdrive the cabinet, the light bulb went white hot, but the horns didn't blow up!"

Towards the end of the recording sessions for "Dark Side" in January 1973, Pink Floyd relocated to Paris to work on music to accompany the Roland Petit Ballet. Added to the growing crew on this occasion were Robbie Willams and Alan Parsons, the "Dark Side" Studio Engineer who had been lured away from Abbey Road to replace Chris Mickie behind the front-of-house console. Parson's appointment began an unusual trend for Floyd to hire the services of whichever studio engineer had worked on their latest album (although this ploy was not always successful), and like many of his successors, he was a total novice in the concert environment.

Parsons, whose only other work as a live sound engineer was for Cockney Rebel at Crystal Palace, says: "I was due to go on a skiing holiday when I was asked over to the Palais des Sport in Paris to learn the ropes at some shows they were doing with the ballet, and I remember that a lot of the movements were based around "One Of These Days". They should have done more of those performances, because the whole concept of a rock band with lights and special effects, and a brilliantly choreographed dance routine was just stunning. I was literally dropped in at the deep end when they said, 'Come and see one of the shows, and then you can take over as our engineer.' So after watching Chris Mickie behind the desk in Paris, I took over and stayed with them on the road for about a year or so, which included two American tours."

When mixing the Floyd, Parsons says that his obvious main concern was avoiding feedback -- a task made difficult by the speaker positioning and the close proximity of the front stack to the band. "You'd be standing on stage and almost have the horns pointing straight at you," comments Parsons. "But the performance of that rig was so pure; there was no pink noise, no graphic EQ to tailor the sound, it was literally down to how you drove the bottom, mid, and top."

As well as recalling the excellent quality of this PA's sound, Parsons casts his mind back to an American tour date in Detroit when many of the system's components were wiped out by pyrotechnics. "By mistake, the flashpots at the front of the stage had been filled twice with explosives. The result was a double-strength explosion, which ended up injuring several people in the front row of the audience. Unfortunately for us, it also destroyed about 60% of the horns and bins, so we had to struggle on for the rest of the show with less than half our PA rig. Of course, we had a gig the next night and finding replacement gear was a major headache."

The aspect of Floyd's sound that Kluczynski remembers most was David Gilmour's guitar sound. "Gilmour was always loud, especially at Earls Court where, during the solo in 'Money', his four 4 by 12-inch cabinets were screaming away at such a level that we couldn't physically put him through the PA. Most of the time I'd mix the solos, because Alan was a bit shy of pushing up the faders compared to me, so I'd nudge his arm a bit!"

In complete contrast to today's standards, Pink Floyd employed just two outboard devices for use at front of house on the "Dark Side" tours, and both of them were Echoplexes for the repeat vocals on "Us And Them". Williams says: "The band members would treat their own sounds and produce effects on stage themselves, which is essentially what happened in the studio. So the sound heard through the PA was generally what came from Gilmour's amps, for example. Each of them had a stack of those dreadful Binson Echorecs and Echoplexes [based on circuitry designed for a GPO telephone switching device]. Rick Wright had a little keyboard mixer that had a couple of effects sends on it, which used to go into various Binsons, and there was a feed going from that to front of house. For the early "Dark Side" concerts, he also had personal access to the "Sound-In-The-Round" via a joystick on his mixer."

As for microphones, for years Roger Waters insisted on their trademark rectangular Sennheiser vocal mics (gold one side, black the other). Parsons says: "The choice was certainly individual, and they didn't sound bad. Generally, we used dynamic mics. There were a lot of SM58s floating around for backing vocals, as part of a Shure setup. At nearly every gig, I would have to re-position the mics a foot away from the guitar cabinets, because the crew would always ram them right up against the grilles, which in my mind was ridiculous. I was always frustrated that whenever I got a really good sound on one gig, the crew would break down all the gear and load out at the end of the night, and all my settings would be lost. So I literally had to start from scratch every night, checking the mics through the desk. The crew would say, 'Oh, we've put the guitar on a channel over here, because that channel wasn't working,' so all of my previous checks were rendered useless. Drums were always critical, so I had this idea of buying a little six-channel Allen & Heath mini mixer which I took home with me every night in a briefcase!"

Crucial to the "Dark Side Of The Moon" concept, both on record and live, were the sound effects which included various human voices, a heartbeat, explosions, the "Money" cash register, and, for "Time", the (alarming) clocks. Parsons himself recorded the clocks for the album on an EMI portable quarter-inch tape machine and later fed through the live quad mix to the astonishment of audiences around the globe. He says: "We went back to the album multi-track tape to copy those clocks and other effects for the live shows, and played them through the quad system on a TEAC four-track deck. For some reason, the board was mis-wired inside and instead of playing them through the PA as tracks 1,2,3,4, the board sent them out as 2,4,1, 3. I was never able to remember exactly which order it was, so I always carried a test tape with me to ensure that the channels were all coming out in the right place. I had Mick Kluczynski firing up the tape machine and would give him a nod to hit the play button in the right places. We had a tape for 'One Of These Days', which included the big, thumping drum sound and Nick Mason's distorted vocal effect which said, 'One of these days I'm going to cut you into little pieces." Mick had been touring with the band almost as long as they had been performing it, but it seemed he could never fire up the tape in the right place without a cue from me."

Kluczynski confirms that prior to the four-track TEAC machine, he had been using a four-track Sony for sound effects. The band later progressed to eight-track Brennells when, Kluczynski says, "Allen & Heath ceased to exist for a while as we knew it, and the key personnel had moved to Brennell, including Nigel Taylor [brother of Allen & Heath troubleshooter Ivor], who we later poached for our crew."

The 1972 and '73 "Dark Side" tours were notable for the Floyd's first use of stage monitoring, although it remained minimal until their "Animals" tour four years later. Never a fan of monitors, Kluczynski says that once the first wedges appeared, they began to spread like a virus and front-of-house engineers quickly realized a they had a struggle for control on their hands. Before the advent of monitoring, Kluczynski maintains, the band were able to hear each other clearly by keeping a sensible level on stage. "During a show, you could walk around the back of the Floyd stage and have a normal conversation, because overall they never played too loud, apart from Dave. The band literally heard themselves off the backline and what was coming back at them from the PA. They were very much into the environmental sound of the house and the pure feel of their music. Because they had no monitoring, there was never the battle between the instrument and the wedge. Subsequently to hear themselves, they kept the general level down, which was really good and incredibly well- disciplined. There was never any ego bullshit in that department.

"The first monitor we brought in was when Dick Parry came on the tour as sax player. Dick had to have a monitor, because his instrument was so loud to him that he couldn't hear the band without one. The next addition of wedges came when our three female backing vocalists walked on stage and said, 'We'll come back when you've finished setting up.' We said, 'We have finished.' They said, 'Where are the monitors then?' 'The what?!' So we got a couple of Tannoys and stuck them in boxes for them."

Williams, who loathes the very concept of monitoring with a vengeance, comments: "Dave, who stood next to the girls, said, 'Oh, I'll have one of those, thank you.' He wanted to hear the front-of- house mix, so we got him a JBL three-way studio monitor, and it sat at stage right against the PA, facing across the stage but far enough forward to be out of everyone's line. Dave would walk forward into it so he could listen to the front mix any time he wanted. Rick Wright also wanted a couple of speakers, and then Dave upgraded his to two studio monitors."

Seth Goldman recalls that the first monitor console he used with the band was one presented to him by Allen & Heath upon return from his sabbatical in 1974. This small desk featured four rows of 16 faders and four outputs. He says: "It had tiny little knobs, and there were four separate mixes available, but they were all fader mixes. I asked the Allen & Heath guys what the hell it was and they replied, 'We don't know. Make it work!' I engineered from Dave's side of the stage and took the foldback from the left and right front mixes and gave it to the band through the on-stage monitors."

When Goldman temporarily left the fold, the responsibility for engineering the monitors was shared amongst the crew, including Williams who tried his hand during the 1974 tour but soon realized that it was not for him. Kluczynski adds: "Monitoring really only started to become a serious area for us on the 'In The Flesh' ('Animals') tour in '77, and Seth returned to become the Monitor Engineer, which I now believe is the most important job on a stage. If he keeps the band happy, everybody's happy, and you get a good show. Seth really took off with monitoring and did a fine job."

As the band earned a new level of fame through the multi-million selling "Dark Side" album, the individual strengths of each of the four members began to show. Rick Wright generally kept a low profile but was never short of ideas, while Nick Mason acted as the conduit between the band and the road crew, often holding team meetings at his house in Highgate. Meanwhile, Roger Waters developed into something of a conceptual genius, who became increasingly concerned about every visual aspect of the live production. And whilst sound quality was high on his agenda, it was David Gilmour who, judging by many associates' comments, tended to have the most to say on the subject -- his keen ears continuing to be the envy of the Floyd crew.

Not even Mick Kluczynski could catch him out. "Dave's ears are phenomenal. The band's backline inventory consisted of anything up to 10 Hiwatt amps, and at the end of 1974, all of Dave's were modified to have a mixed bright and normal high gain input. They were identical, but he had his favorites. I would set up his rack, and he would have three amps in a line (including one spare), with two Binson echo units on the top. He would come in and do a quick check, and say, 'I don't like that amp, can you change it?' I'd take the amp across the stage, walk around the back and set the same one back up, but Dave always sussed me! He was frightening! He would be able to stand on stage with two single 12-inch wedges in front of him and four 4 by 12-inch cabs behind him, all driven from two Hiwatt 100 Watt amps. I couldn't walk into that field, it was too intense. But he'd call me over and say, 'One of the speakers is out in the stage left PA.' I'd say, 'F**k off, Dave!' But I'd check and sure enough, he'd be right, but I never understood how he could tell."

Now David Gilmour's personal guitar technician and the band's backline chief, Phil Taylor was hired by Watts in the summer of 1974 to join the Floyd's crew as the backline technician for Gilmour, Waters, and Wright, while Kluczynski doubled as Mason's drum technician. With more than 20 years' association with the band behind him, he is well placed to assimilate the members' various strengths. He says: "It was always David and Roger, who governed the way things went on stage. They might not necessarily agree on the same point, but both of them were always very aware of the sound. One of Roger's strong points was organizing, along with David, the sound of the band in the studio, whilst for the live shows, he would usually be more concerned with the overall production picture. David, who was acknowledged amongst the crew as 'the man with the ears', would ensure that things were sounding right and had more understanding of how to achieve this end in the live situation."

Excessive touring in support of "The Dark Side Of The Moon" prevented any new album release in 1974. Now desperate to come up with new material for their July/August 1974 French tour, and subsequent November/December tour of the UK, the Floyd congregated in a rehearsal studio in London's King's Cross in the summer of that year with but a shoestring of ideas.

Two songs -- "Raving and Drooling" and "You Gotta Be Crazy" -- were formed from bassist Roger Water's cutting, Orwellian lyrics and were to be included into the live set alongside the "Dark Side" numbers. Radically reworked later as "Sheep" and "Dogs", this new material would not officially surface on record until "Animals" in January 1977. Live performances of "Raving and Drooling" were notable for the use of a specially compiled effects tape featuring the randomly edited ramblings of BBC radio presenter, Jimmy Young! One wonders if he is aware of his contribution to the Floyd canon.

Towards the end of the King's Cross rehearsals, a stroke of sheer magic on the part of Gilmour gave the flagging creative process a much needed spark and helped to produce one of the band's greatest works, the Syd Barrett elegy "Shine On You Crazy Diamond". And it was all down to four notes: B flat, F, G, and E. Their new live set was complete.

Although the band's touring crew now amounted to 16 people, only Phil Taylor accompanied the four members during these rehearsals. While the sessions have been described by some personnel as "fraught" and "suffering from inner tension", Taylor remembers them as "normal, calm, and focused." He adds: "Getting the equipment ready prior to those rehearsals was the first thing I ever did with them. The gear had literally been in a pile of shambled mess, having come back from a previous tour and been swept into a corner without anyone taking care of it. So I continued to get it all back into shape, working in the same room as the band as they were writing these new songs. I even went next door to the Wimpy Bar to get their lunch!"

A total of 32,000 people saw the Floyd over four nights at Wembley Empire Pool in November 1974, on the tour which reportedly cost 100,000 UKP and ran at a loss. Investments in their new Allen & Heath mixing console (with separate monitor board), a new film projector, and a revolving mirror ball, which sprayed the audience with pencil thin beams of light during "Shine On", were largely to blame.

According to Kluczynski, distinct cracks began to show in the inner sanctum at this time. "Peter Watts had told the band that he was building them a new PA, but it wasn't true. We'd done nothing but talk about it and didn't have the money available anyway. Things came to a head and Peter was asked to leave the team, and Robbie and I were forced to pick up the pieces, with our Lighting Designer Arthur Max as Production Manager, although by the end of the '74 tour, I had taken over from him."

Williams and Kluczynski had only four days before the first winter date at the Usher Hall in Edinburgh to do whatever was necessary to service their existing PA and prepare it for five weeks on the road. "We had the same old bins; they were in a bit of a state, but we could make them last the tour," says Kluczynski.

The winter tour saw the introduction of "Ummagumma"'s live recording engineer Brian Humphries as the new FOH Engineer for Pink Floyd, his unscheduled assistance giving the band a new lease of life. Taylor recalls Humphries's entrance to the Floyd court: "Brian became our Front-of-house Mixer" on the second night at Wembley (November 15). Up until then, the dates on the tour had been mixed by Rufus Cartwright, an engineer from Olympic Studios who recorded the "Blue Pine Trees" album by Unicorn which Dave produced. Rufus was great in the studio, and Dave asked if he'd like to do the next Floyd tour. However, unlike everyone else who had come from studio backgrounds to mix the Floyd live, Rufus was completely out of his depth. Consequently, the first five shows on the tour were horrendous.

"Brian came along to the first night at Wembley as a friend to see the show, and Steve O'Rourke collared him backstage, saying 'Right, you're mixing the sound tomorrow night, and I'm not taking no for an answer!' We did a soundcheck the next afternoon with Brian behind the desk, and within five minutes, it sounded like a real gig. It was wonderful! So as a result of everyone being knocked out by this massive improvement, and having worked with him previously, Brian was asked to be engineer on the sessions for 'Wish You Were Here' when the band started work at Abbey Road after Christmas."

Millions heard one of the Humphries-engineered Wembley shows when it was transmitted on BBC Radio 1, and rumour has it that it may finally be released as a live album in the not too distant future. Humphries would go on to engineer "Animals" at the Floyd's new studios in 1976.

Sidebars:

Although Pink Floyd had been performing "The Dark Side Of The Moon" in various guises for the past 16 months, their dedicated Earls Court shows on May 18-19 1973 were the first to follow the official release of the album. Tickets were priced 2.00, 1.75, and 1.00 UKP, with profits in aid of Shelter. The model airplane, which featured on all "Dark Side" shows (crashing at the end of the "On The Run" travel sequence), was designed and built by Derek Maddings, the man responsible for similar models employed in James Bond movies and Gerry Anderson's television puppet classics, including "Thunderbirds".

Peter Watts, who joined the Floyd team as Tour Manager and Sound Engineer towards the end of the Syd Barrett era, is regarded by many who worked with him as being the person most responsible for shaping the band's live sound characteristics. Mick Kluczynski says: "He had been with the Floyd so long, almost from day one, and when they were off the road, he would spend most of his time inventing at Bill Kelsey's place and dreaming up new PA ideas. It was Peter who established the Floyd's quad system. He was a brilliant innovator and a really nice guy, who taught me a hell of a lot of stuff, but he was totally mad and living the rock'n'roll life to the full a la Keith Richards."

Seth Goldman is equally full of praise for Watts. "Peter was like the fifth member of the band and very important to their live development. Plus, he was there before all of us and was great at getting the right people for all the things that needed to be accomplished. Sadly, he was a victim of his own lifestyle, and he began to get himself into some sticky situations, both personally and in business."

Watts left the Floyd crew in mysterious circumstances shortly before the Winter '74 UK tour. Two years later, on August 2 1976, he was found dead -- the apparent result of heroin abuse. A sad waste of talent.

During intermissions in Pink Floyd concerts, members of the largely male audiences would head for the mixing platform and quiz Alan Parsons and Mick Kluczynski about the band. Kluczynski recalls: "We always knew the things they'd ask, none of which were pertinent to the quality of what we were doing, so we wrote down 10 answers and taped them to each end of the desk. The most popular question was 'Where's Syd?'; the second was 'What does an Azimuth Coordinator do?'"

When the Floyd toured the Far East in the mid-1970s, they hired a DC10 aircraft to fly their PA and backline into Japan. Unfortunately, the equipment was unloaded and delivered into the airport terminal via the normal baggage claim route by clueless handling staff, thus closing down part of the airport for more than an hour.

David Gilmour's equipment during the early 1970s was a considerably more simple affair in comparison to the enormous rig used on the 1994 "Division Bell" world tour, even though they actually shared similar elements. Since joining Pink Floyd in 1968 (when Roger Waters moved from his Rickenbacker 4001S bass to a Fender Precision), Gilmour's favored guitars for live work have always been Fender Stratocasters and Telecasters, Martin acoustics, and a double neck Fender pedal steel, which he used on "One Of These Days" and "The Great Gig In The Sky". For many years, he played through a complement of Custom Hiwatt 100 amps.

At the time of his Guitar Tech Phil Taylor's arrival in 1974, Gilmour's effects were minimal and pre-dated the first board that specialist Pete Cornish built for him in 1976. These pedals included two Binson echo units, two Dallas Arbiter Fuzz Faces, a Uni-Vibe, a DeArmond volume pedal, and Cry Baby wah-wah. When performing "On The Run", Gilmour swapped his guitar for an EMS Synthi A -- the suitcase version of the VCS3 synthesizer used on the "Dark Side" album.