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Information about the augmented sixth interval

Name

This is the augmented sixth interval.

Abbreviation

This interval is abbreviated with A6.

Practice the A6 interval

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Construct

How to construct the augmented sixth 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: A3

1 • The augmented sixth spans 6 naturals.
C3  ↠  D3  ↠  E3  ↠  F3  ↠  G3  ↠  A3
2 • The augmented sixth has 10 semitones between the notes.
C3  ↠  C3  ↠  D3  ↠  D3  ↠  E3  ↠  F3  ↠  F3  ↠  G3  ↠  G3  ↠  A3  ↠  A3

Cheatsheet

The augmented sixth transposed from each note

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

Practice the A6 interval

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Chords

Which chords use the augmented sixth interval?

Scales

Which scales use the augmented sixth interval?

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