Yamaha is one of the worst when It comes to this problem with Hand Claps in SMF playback where other KB's dont do it. I had this problem many times it is so annoying and a pain in the butt caused by wrong Yamaha GM drum assignments. You can do it in SONG CREATOR in the keyboard ....event by event....open the song and go to track 10.....and delete "each note that represents the hand-clap" all the way thru the song then just re-save.....or you'll have to use a Midi editing program like Sonar Cakewalk, etc etc & go into Micro event edit to isolate the clap & remove it.

[This message has been edited by Dnj (edited 06-20-2008).]