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Intervals · 0-11 half steps

HS = half steps
O HS
perfect unison (1)
1 HS
minor second (b2)
augmented unison (#1)
2 HS
major second (2)
3 HS
minor third (m3, b3)
augmented second (#2)
4 HS
major third (3)
diminished fourth (b4)
5 HS
perfect fourth (4)
6 HS
diminished fifth (b5)
augmented fourth (#4)
7 HS
perfect fifth (5)
8 HS
minor sixth (m6, b6)
augmented fifth (#5)
9 HS
major sixth (6)
10 HS
minor seventh (b7)
augmented sixth (#6)
11 HS
major seventh (j7)
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Interval qualities

There are five different interval qualities, which are not applicable to all intervals:

  • pure only applies to simple intervals of fourths, fifths or octaves and their octave doublings (e.g. compound intervals like tenths or twelfths),
  • major or minor applies to seconds, thirds, sixths or sevenths and their octave doublings,
  • diminished or augmented is theoretically applicable to all intervals, but practically these qualities are rare for thirds, sixths and octaves.