Originally Posted by: ryrysweetiepieok, i don't know what you mean by various diatonic chords. i'm assuming that those are just a bunch of other chords whose arpegios work well with a c chord. is there a way to find diatonic chords for chords that aren't a c major? sry if my question doesn't make sense.

Ok, if the song is in Cmajor, there are various diatonic, or things within the key, chords you can use. C-Dm-Em-F-G-Am-Bdim. Any of those can be arpeggiated. Just use the chords that inclue any of the notes C-D-E-F-G-A-B-C, and that's just the diatonic stuff. You can do chromatic (out of the key) chords like bVI or bIII. Or Vii*7 which would end you up with an Ab.