Information about the perfect fourth interval

Name

This interval is called: Perfect fourth

Abbreviation

You can use the somewhat shorter name "P4" to indicate a Perfect fourth.

Construct

How to build a perfect fourth interval?

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

  1. Count the amount of naturals used
  2. Count the steps between de two notes

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

The following example is for a perfect fourth from C3. Outcome: F3

1.
A Perfect fourth uses 4 naturals.
Example: C3 D3 E3 F3
2.
A Perfect fourth has 5 semitones between the notes.
Example: C3 C#3 D3 D#3 E3 F3

Cheatsheet

Tranposed for each note

You can use the following cheatsheet to check the Perfect fourth for each root note.
Cb3 ↠ Fb3
C3 ↠ F3
C3 ↠ F3
C3 ↠ F3
C#3 ↠ F#3
C3 ↠ F3
Db3 ↠ Gb3
D3 ↠ G3
D3 ↠ G3
D3 ↠ G3
D#3 ↠ G#3
D3 ↠ G3
Eb3 ↠ Ab3
E3 ↠ A3
E3 ↠ A3
E3 ↠ A3
E#3 ↠ A#3
E3 ↠ A3
Fb3 ↠ Bbb3
F3 ↠ B3
F3 ↠ Bb3
F3 ↠ B3
F#3 ↠ B3
F3 ↠ B3
Gb3 ↠ Cb4
G3 ↠ C4
G3 ↠ C4
G3 ↠ C4
G#3 ↠ C#4
G3 ↠ C4
Ab3 ↠ Db4
A3 ↠ D4
A3 ↠ D4
A3 ↠ D4
A#3 ↠ D#4
A3 ↠ D4
Bb3 ↠ Eb4
B3 ↠ E4
B3 ↠ E4
B3 ↠ E4
B#3 ↠ E#4
B3 ↠ E4