Information about the tredecime interval

Name

This interval is called: Tredecime

Abbreviation

You can use the somewhat shorter name "M13" to indicate a Tredecime.

Chord name

Thirteenth

Construct

How to build a tredecime 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 tredecime from C3. Outcome: A4

1.
A Tredecime uses 13 naturals.
Example: C3 D3 E3 F3 G3 A3 B3 C4 D4 E4 F4 G4 A4
2.
A Tredecime has 21 semitones between the notes.
Example: C3 C#3 D3 D#3 E3 F3 F#3 G3 G#3 A3 A#3 B3 C4 C#4 D4 D#4 E4 F4 F#4 G4 G#4 A4

Cheatsheet

Tranposed for each note

You can use the following cheatsheet to check the Tredecime for each root note.
Cb3 ↠ Ab4
C3 ↠ A4
C3 ↠ A4
C3 ↠ A4
C#3 ↠ A#4
C3 ↠ A4
Db3 ↠ Bb4
D3 ↠ B4
D3 ↠ B4
D3 ↠ B4
D#3 ↠ B#4
D3 ↠ B4
Eb3 ↠ C5
E3 ↠ C5
E3 ↠ C#5
E3 ↠ C5
E#3 ↠ C##5
E3 ↠ C5
Fb3 ↠ Db5
F3 ↠ D5
F3 ↠ D5
F3 ↠ D5
F#3 ↠ D#5
F3 ↠ D5
Gb3 ↠ Eb5
G3 ↠ E5
G3 ↠ E5
G3 ↠ E5
G#3 ↠ E#5
G3 ↠ E5
Ab3 ↠ F5
A3 ↠ F5
A3 ↠ F#5
A3 ↠ F5
A#3 ↠ F##5
A3 ↠ F5
Bb3 ↠ G5
B3 ↠ G5
B3 ↠ G#5
B3 ↠ G5
B#3 ↠ G##5
B3 ↠ G5