DrumTrackPatternEvent

 1 DRUM TRACK PATTERN EVENT DATA

 It's simply an array of the event data (8byte/event. See 'EVENT DATA FORMAT IN SONG' in 
 KORG_KRONOS_SysEx.txt). The total number of the events per pattern, is valiable and the 
 events are sent as separated packet. Single packet can have up to 3000 events.

 ex)
  o If there are 1000 events in a pattern, all the events are sent in a single F0~F7 packet.
  o If there are 5000 events in a pattern, you'll see two F0~F7 packets. 1st packet has 3000 events, and 
    2nd has 2000 events.