La Monte Young - Magic opening chord: E♭, E, F, A, B♭, C, D, E♭, E, F, G, A, B♭ = 2:3:7:9:21:63:567:189:567. The opening chord (left), E, F, A, B♭, D, E, G, and A, and the magic chord (right), E♭, B♭, C, E♭, F, B♭.
This is a sawtooth waveform suitable for easily tuning guitar by ear, comprised of 20 seconds each of e-a-d-g-b-e in sequence. Adjust guitar volume to same volume as the tone, ideally through the same audio output. Tune the string close to the tone, then listen for the subtle beat-frequency indicating not-quite-perfect tune. When the beat frequency goes away, your guitar string is in perfect tune. Also useful for adjustable bridges. The open string and its 12th fret octave will both produce no beat-frequency when the bridge is adjusted properly.
19th harmonic minor triad on C. MIDI pitch bend matches intervals.
Author: Created by Hyacinth (talk) in Sibelius 5 with midi pitch bend on 26,63 for 297.513016 cents rather than 300 and 80,64 for 701.953125 cents rather than 700.
*Just augmented fourth (45th harmonic) on C = F♯+. 45/32 = 590.22 cents. Limit: 5-limit. MIDI pitch bend: 112,60 Midi pitch bend on ~B 112,60 for 590.234375 cents rather than 600.
