Actually b00daw kind of hit the nail on the head. If you have one of your instruments detuned correctly, you can open up a whole section of the scale that isn't available on your other instruments. It's kind of limited since you can only have 7 melodic instruments per module, but it can be done haha.
Cool sounds with the faux sidechaining going on. With some tweaking you could probably make a cool house track, which would require less melodic variation than what you were attempting. Anyway, good work!