Sensei Martin uses recorded tyco music at most of our events as a preliminary, lead-on piece to set a martial arts atmosphere or during breaks.
Master Gushi's oldest son is a Master drummer. Master Gushi also plays the tyco drums and has taught Sensei Alan Dollar.
At a recent even, Master Gushi demonstrated his eccu kata accompanied by Sensei Dollar.
Note the difference here. The Martial Artist performs the kata and the drummer accompanies according to the Martial Artist's speed, rhythm and emphasis.
This is not the same as adjusting your kata to previously recorded drum music.
But it would be a challenge to do san sei ryu to a recording of a Master drummer accompaning a Master Martial Artist such as Master Shinjo.