clearMidiInBuffer();
    public void requestPatchDump(int bankNum, int patchNum) {	clearMidiInBuffer();	// checksum depends on drum kit number (patchNum).	int checkSum = -(0x41 + patchNum) & 0x7f;	send(SYS_REQ.toSysexMessage(getDeviceID(),				    new NameValue("patchNum", patchNum),				    new NameValue("checkSum", checkSum)));    }