Lots of other arpeggiated 7th chords will work too:
D-Maj7, Esusb9, Faug, G7+11, A7b13, B-7b5...all derived from the altered scale.
D-Maj7, Esusb9, Faug, G7+11, A7b13, B-7b5...all derived from the altered scale.
Duke, you got me! I was certainly thinking C#7alt instead of C7alt.DukeCity said:Are you sure you're thinking of C+7(#9) and its corresponding altered scale?
Looks like the chords you listed are diatonic to D melodic minor, and could work over C#+7(#9).