Learn music theory with Sonid app icon

Information about the diminished octave interval

Name

This is the diminished octave interval.

Abbreviation

This interval is abbreviated with d8.

Learn music theory with Sonid

Sonid can you help you to understand how music theory works on any device. It's free!

learn music theory with sonid app logofor iOS and Android

Construct

How to construct the diminished octave interval?

To construct an interval correctly you must always use two steps.

1 • Count the amount of naturals used
2 • Count the semitone steps between the two notes

At first, and with easy intervals, this may seem unnecessary, but when advancing to more difficult intervals and musical keys they will become more mandatory.

The following example is for a minor second from C3. Outcome: C4

1 • The diminished octave spans 8 naturals.
C3  ↠  D3  ↠  E3  ↠  F3  ↠  G3  ↠  A3  ↠  B3  ↠  C4
2 • The diminished octave has 24 semitones between the notes.
C3  ↠  D3  ↠  D3  ↠  E3  ↠  E3  ↠  F3  ↠  G3  ↠  G3  ↠  A3  ↠  A3  ↠  B3  ↠  B3  ↠  C4  ↠  D4  ↠  D4  ↠  E4  ↠  E4  ↠  F4  ↠  G4  ↠  G4  ↠  A4  ↠  A4  ↠  B4  ↠  B4  ↠  C5

Cheatsheet

The diminished octave transposed from each note

C
C
C
C
C
C
D
D
D
D
D
D
E
E
E
E
E
E
F
F
F
F
F
F
G
G
G
G
G
G
A
A
A
A
A
A
B
B
B
B
B
B

Chords

Which chords use the diminished octave interval?

Scales

Which scales use the diminished octave interval?

Related articles

No related posts found