Information about the augmented unison interval

Name

This interval is called: Augmented unison

Abbreviation

You can use the somewhat shorter name "A1" to indicate a Augmented unison.

Construct

How to build a augmented unison 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 augmented unison from C3. Outcome: C#3

1.
A Augmented unison uses 1 naturals.
Example: C3
2.
A Augmented unison has 1 semitones between the notes.
Example: C3 C#3

Cheatsheet

Tranposed for each note

You can use the following cheatsheet to check the Augmented unison for each root note.
Cb3 ↠ C3
C3 ↠ C3
C3 ↠ C#3
C3 ↠ C3
C#3 ↠ C##3
C3 ↠ C3
Db3 ↠ D3
D3 ↠ D3
D3 ↠ D#3
D3 ↠ D3
D#3 ↠ D##3
D3 ↠ D3
Eb3 ↠ E3
E3 ↠ E3
E3 ↠ E#3
E3 ↠ E3
E#3 ↠ E##3
E3 ↠ E3
Fb3 ↠ F3
F3 ↠ F3
F3 ↠ F#3
F3 ↠ F3
F#3 ↠ F##3
F3 ↠ F3
Gb3 ↠ G3
G3 ↠ G3
G3 ↠ G#3
G3 ↠ G3
G#3 ↠ G##3
G3 ↠ G3
Ab3 ↠ A3
A3 ↠ A3
A3 ↠ A#3
A3 ↠ A3
A#3 ↠ A##3
A3 ↠ A3
Bb3 ↠ B3
B3 ↠ B3
B3 ↠ B#3
B3 ↠ B3
B#3 ↠ B##3
B3 ↠ B3