I'm building a musical app, that plays 12 notes. Due to memory constraints, I can only include 6 chords. Which 6 chords would work best with all 12 notes?
closed as primarily opinion-based by jjmusicnotes, Sergio, neilfein, Jason W, luser droog Sep 26 at 10:02
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Which are the notes played by the musical application?
If you are diatonic (easiest way but maybe boring), you could stay in the same key all the time and include the triads built on the notes of the key : I, II, III, IV, V, VI. forget the VII triad. You'll have a variety of major and minor chords to harmonize the melodies. This is a bit boring : no modulation is possible since all the notes belong to the same key.
If you are chromatic (a full octave, white+black keys on a piano), 6 chords won't be enough to harmonize the possible melodies : you will be able to harmonize only a part of the melodies, depending of the key you'll play. If you restrict to two keys (e.g. C and G) and use the I, IV, V, VI in C and I, V7 in G, it might work but it will still be "poor".
There is no correct answer. There are some sets of 6 chords which would not work at all well, but as for which 6 will work best - this is entirely subjective.
Choose 6 that work best with the types of music you want it to be able to play.