Interval Reference
Intervals describe the distance (in semitones) between two notes, and are
the fundamental building block that all chords and scales are built on.
Listed below is a reference of the names, example note spans, and audio of
the primary intervals.
0 semitones
Major/Minor/Perfect
short: P1
Perfect unison
Diminished/Augmented
short: d2
Diminished second
Example Note Span: A - A
1 semitone
Major/Minor/Perfect
short: m2
Minor second
Diminished/Augmented
short: A1
Augmented unison
Example Note Span: A - Bb
2 semitones
Major/Minor/Perfect
short: M2
Major second
Diminished/Augmented
short: d3
Diminished third
Example Note Span: A - B
3 semitones
Major/Minor/Perfect
short: m3
Minor third
Diminished/Augmented
short: A2
Augmented second
Example Note Span: A - C
4 semitones
Major/Minor/Perfect
short: M3
Major third
Diminished/Augmented
short: d4
Diminished fourth
Example Note Span: A - C#
5 semitones
Major/Minor/Perfect
short: P4
Perfect fourth
Diminished/Augmented
short: A3
Augmented third
Example Note Span: A - D
6 semitones
Major/Minor/Perfect
Not applicableDiminished/Augmented
short: A4, d5
Augmented fourth, Diminished fifth
Example Note Span: A - D#
7 semitones
Major/Minor/Perfect
short: P5
Perfect fifth
Diminished/Augmented
short: d6
Diminished sixth
Example Note Span: A - E
8 semitones
Major/Minor/Perfect
short: m6
Minor sixth
Diminished/Augmented
short: A5
Augmented fifth
Example Note Span: A - F
9 semitones
Major/Minor/Perfect
short: M6
Major sixth
Diminished/Augmented
short: d7
Diminished seventh
Example Note Span: A - F#
10 semitones
Major/Minor/Perfect
short: m7
Minor seventh
Diminished/Augmented
short: A6
Augmented sixth
Example Note Span: A - G
11 semitones
Major/Minor/Perfect
short: M7
Major seventh
Diminished/Augmented
short: d8
Diminished octave
Example Note Span: A - G#
12 semitones
Major/Minor/Perfect
short: P8
Perfect octave
Diminished/Augmented
short: A7, d9
Augmented seventh, Diminished ninth
Example Note Span: A - A
13 semitones
Major/Minor/Perfect
short: m9
Minor ninth
Diminished/Augmented
short: A8
Augmented octave
Example Note Span: A - Bb
14 semitones
Major/Minor/Perfect
short: M9
Major ninth
Diminished/Augmented
short: d10
Diminished tenth
Example Note Span: A - B
15 semitones
Major/Minor/Perfect
short: m10
Minor tenth
Diminished/Augmented
short: A9
Augmented ninth
Example Note Span: A - C
16 semitones
Major/Minor/Perfect
short: M10
Major tenth
Diminished/Augmented
short: d11
Diminished eleventh
Example Note Span: A - C#
17 semitones
Major/Minor/Perfect
short: P11
Perfect eleventh
Diminished/Augmented
short: A10
Augmented tenth
Example Note Span: A - D
18 semitones
Major/Minor/Perfect
Not applicableDiminished/Augmented
short: A11, d12
Augmented eleventh, Diminished twelfth
Example Note Span: A - D#
19 semitones
Major/Minor/Perfect
short: P12
Perfect twelfth
Diminished/Augmented
short: d13
Diminished thirteenth
Example Note Span: A - E
20 semitones
Major/Minor/Perfect
short: m13
Minor thirteenth
Diminished/Augmented
short: A12
Augmented twelfth
Example Note Span: A - F
21 semitones
Major/Minor/Perfect
short: M13
Major thirteenth
Diminished/Augmented
short: d14
Diminished fourteenth
Example Note Span: A - F#
22 semitones
Major/Minor/Perfect
short: m14
Minor fourteenth
Diminished/Augmented
short: A13
Augmented thirteenth
Example Note Span: A - G
23 semitones
Major/Minor/Perfect
short: M14
Major fourteenth
Diminished/Augmented
short: d15
Diminished fifteenth
Example Note Span: A - G#
24 semitones
Major/Minor/Perfect
short: P15
Perfect fifteenth
Diminished/Augmented
short: A14
Augmented fourteenth
Example Note Span: A - A