Friday, March 20, 2015

All good-sounding, choral 13th chords

Here is a PDF of all good-sounding choral 13th chords (excluding transpositions) along with a MIDI. It contains 203 chords in an extreme choral range: F2 to A5, sorted in an order useful for music composition purposes.

This list also contains about fifteen chords which don't sound as good. However, I didn't detect a pattern I could use, in order to remove them automatically.

I removed all chords containing:
  • Minor seconds;
  • Minor ninths;
  • Tritones;
  • Two consecutive major seconds;
  • More than two major seconds;
  • Major seconds starting lower than F3 or higher than F4;
  • Gaps greater than an octave which resume higher than F4.

Copyright (c) 2015 Mark D. Blackwell.

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