Hello! I am new to MIDI, and so I am trying to connect my Casio DH-100 Saxophone to my Yamaha e323 keypboard via MIDI, and although it is working, I am only getting the voice of the Grand Piano (Voice #1) coming out of the keyboard. I would like to get the Tenor Sax voice (#63). How can I do that? Apparently I need to change the program channel number to say # 67, but I can't figure out how to do it. Any suggestions please? Thanks!