The Mudcat Café TM
Thread #134407   Message #3058779
Posted By: Dave MacKenzie
21-Dec-10 - 03:12 PM
Thread Name: On not knowing chords - and not helping
Subject: RE: On not knowing chords - and not helping
"Major and minor semitones refer to small intervals within the whole tone in nonequal tuning systems. In Equal Temperament, G# and Ab, for example, are the same notew, so the distance from G to G# is the same sa the distance from G to Ab, and G# to A, and Ab to A, and so on. In other systems, however, G# and Ab are different pitches, so the distance from G (and from A) to each of these intermediate notes is larger or smaller, depending on the way the tuning system is constructed. ......... The larger intervals in these cases ...... would be major semitones and the smaller ones, minor semitones."

Ross W Duffin, 'How Equal Temperament Ruined Harmony (and Why You Should Care)'