So if I understand your example, the main music would go in channel 1 rather than 0? And I have one more question, does the duration work as the tempo? And if so, how do I set up the duration if each note has it's own duration? I'll attach my files for the music to try to make my question clearer or if I'm confused, I'll upload the mono version of the tune, as well as the bin file.
music1.bas
music1.bas.bin