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Information about the perfect fourth interval

Name

This is the perfect fourth interval.

Abbreviation

This interval is abbreviated with P4.

Practice the P4 interval

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Construct

How to construct the perfect fourth 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: F3

1 • The perfect fourth spans 4 naturals.
C3  ↠  D3  ↠  E3  ↠  F3
2 • The perfect fourth has 5 semitones between the notes.
C3  ↠  C3  ↠  D3  ↠  D3  ↠  E3  ↠  F3

Cheatsheet

The perfect fourth transposed from each note

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

Practice the perfect fourth interval

Open the app and start your daily workout!

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Chords

Which chords use the perfect fourth interval?

Scales

Which scales use the perfect fourth interval?

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