Major third

Related Terms:

minor chord picardy third diminished fourth dominant seventh chord major scale tonic major seventh chord tonic triad major musical interval perfect fifth major interval mediant minor third western tertian major triad diatonic scale major thirds minor triad enharmonically semitone tierce de picardie neutral third major chord

Noun

Definition: A musical interval of the Western twelve-semitone system consisting of four semitones and spanning three degrees of the diatonic scale. Major scales are so named because of the major third interval between the tonic and mediant of a major tonic triad. It is enharmonically equivalent to a diminished fourth.