@KitRedgrave Pentatonic scales in general are pretty great for that, regardless of what kind~ Enough tones to sound interesting, not enough for them to clash horribly unless you pick a -really- dissonant scale for them.
Of course, you can go practically anywhere with the scale itself... experimenting with stuff outside 12-TET may be worthwhile, too.
@KitRedgrave yeah! shit, even messing around with just intonation and intervals you don't really encounter in Western music may be worth it (1/1 - 8/7 - 9/7 - 3/2 - 12/7 for a septimal twist on the ol' major pentatonic, for instance)
@Thaminga this really makes me wish i had a midi keyboard right now so i could play around with these
@KitRedgrave so of course I immediately worked this idea out in greater detail