Intervals

Theory Things   William Wieland

½ Steps Augmented Seventh A7 12 P8 Perfect Octave Major Seventh M7 11 d8 Diminished Octave Minor Seventh m7 10 A6 Augmented Sixth Diminished Seventh d7 9 M6 Major Sixth Augmented Fifth A5 8 m6 Minor Sixth Perfect Fifth P5 7 d6 Diminished Sixth Diminished Fifth d5 6 A4 Augmented Fourth Augmented Third A3 5 P4 Perfect Fourth Major Third M3 4 d4 Diminished Fourth Minor Third m3 3 A2 Augmented Second Diminished Third d3 2 M2 Major Second Augmented Unison A1 1 m2 Minor Second Perfect Unison P1 0 d2 Diminished Second

Consonant P8 M6 & m6 P5 M3 & m3 P1 Dissonant 7ths P4* 2nds all aug. all dim.   *above the lowest note