Novice Help please. How to stop MIDI channel 1 defaulting to piano?

    Mar 16 2011 | 2:08 pm
    I'm currently building a model for university that will basically make music from values in a text file. I have that part sorted. I will like to use MIDI to make the music.
    I've been looking at the MAX list processing tutorial, and the percussion section looks pretty easy, just the melody section is troubling me. Noteout is set to channel 1, which just so happens to default to piano.
    Can someone tell me how I change this to another sound i.e. Bass, or guitar? I would still like to have the individual notes play, just not piano notes.
    Thanks :)