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Information about the augmented second interval

Name

This is the augmented second interval.

Abbreviation

This interval is abbreviated with A2.

Practice the A2 interval

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Construct

How to construct the augmented second 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: D3

1 • The augmented second spans 2 naturals.
C3  ↠  D3
2 • The augmented second has 3 semitones between the notes.
C3  ↠  C3  ↠  D3  ↠  D3

Cheatsheet

The augmented second transposed from each note

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

Practice the A2 interval

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Chords

Which chords use the augmented second interval?

Scales

Which scales use the augmented second interval?

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