Information about the minor ninth interval

Name

This interval is called: Minor ninth

Abbreviation

You can use the somewhat shorter name "m9" to indicate a Minor ninth.

Chord name

Flat nine

Construct

How to build a minor ninth 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 minor ninth from C3. Outcome: Db4

1.
A Minor ninth uses 9 naturals.
Example: C3 D3 E3 F3 G3 A3 B3 C4 D4
2.
A Minor ninth has 13 semitones between the notes.
Example: C3 Db3 D3 Eb3 E3 F3 Gb3 G3 Ab3 A3 Bb3 B3 C4 Db4

Cheatsheet

Tranposed for each note

You can use the following cheatsheet to check the Minor ninth for each root note.
Cb3 ↠ Dbb4
C3 ↠ D4
C3 ↠ Db4
C3 ↠ D4
C#3 ↠ D4
C3 ↠ D4
Db3 ↠ Ebb4
D3 ↠ E4
D3 ↠ Eb4
D3 ↠ E4
D#3 ↠ E4
D3 ↠ E4
Eb3 ↠ Fb4
E3 ↠ F4
E3 ↠ F4
E3 ↠ F4
E#3 ↠ F#4
E3 ↠ F4
Fb3 ↠ Gbb4
F3 ↠ G4
F3 ↠ Gb4
F3 ↠ G4
F#3 ↠ G4
F3 ↠ G4
Gb3 ↠ Abb4
G3 ↠ A4
G3 ↠ Ab4
G3 ↠ A4
G#3 ↠ A4
G3 ↠ A4
Ab3 ↠ Bbb4
A3 ↠ B4
A3 ↠ Bb4
A3 ↠ B4
A#3 ↠ B4
A3 ↠ B4
Bb3 ↠ Cb5
B3 ↠ C5
B3 ↠ C5
B3 ↠ C5
B#3 ↠ C#5
B3 ↠ C5