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WindyTreetoday at 8:03 AM0 repliesview on HN

Pretty good, could use more on the tonic, how it’s defined for a diatonic set of 7 notes. The chosen I IV V primary chords are key for that, but a precious tidbit I learned is any of the notes can be set as tonic, but the I IV V chords are only for major and minor. Like for the notes in C major, it becomes A minor with I IV V chords starting off A, but to set the tonic to F, it becomes F Lydian mode with primary chords I, II, and VII. (Fmag, Gmaj, Emin) The rule for the primary chords of the modes is you find the note that differentiates it from the major or minor scale, and pick the chords that have it avoiding the diminished. Playing the notes of c major starting at f, it’s the sharp fourth b that is different, so the primary triads are f-a-c e-g-b and g-b-d.

Oh, and rhythm is just the same as consonance. Most are octave based, beats on wave peaks of overlaid octaves getting quieter. The 3 based on times like 6/8 are the same but for 5ths and 17ths. (The bottom number 8 is just a BPM hint from old days.) beyond those the intervals get unstable feeling, like 7/4 in Money by Pink Floyd has that cut off feeling, someone took a few from each measure, but maps to a minor 7th interval.