C major scale played on a martin sigma 6 string acoustic guitar with old steel strings using a seymour duncan soundhole pickup into a presonus audio box interface. Recorded at 120bpm in living room.
*Augmented octave and diminished unison on C = C♯. Equal-tempered: 21/12:1 = 100 cents. MIDI pitch bend: none Note how the diminished unison is essentially equivalent to the augmented unison.