A# Chromatic scale
All twelve pitch classes of the octave in semitone order; tonal hierarchy comes only from context.
Octaves
Musical context
How the scale relates to the chord, mode, key and progression.
Theory
General info
- Name
- A# Chromatic scale
- Family
- Symmetric scales
- Note count
- 12
- Step formula
- H – H – H – H – H – H – H – H – H – H – H – H
- Numeric formula
- 0-1-1-1-1-1-1-1-1-1-1-1-1
Notes & degrees
1A#root
b2Bminor 2nd
2B#major 2nd
b3C#minor 3rd
3Dmajor 3rd
4D#perfect 4th
b5Edim 5th
5E#perfect 5th
b6F#minor 6th
6Gmajor 6th
b7G#minor 7th
7Amajor 7th
Construction
- Overview
- All twelve pitch classes of the octave in semitone order; tonal hierarchy comes only from context.
- Application in music
- Has no key of its own. Used for chromatic passing and neighbor tones.
- Interval formula
- A#HBHB#HC#HDHD#HEHE#HF#HGHG#HA
Tensions & resolutions
Stable degrees
IA#nominal centretonic
Typical resolutions & tensions
IIIDD
IVD#D#
In a dominant context, scale degree 4 normally descends by step to 3.
IA#A#
IIB#B#
Scale degree 2 may descend to tonic; the motion is especially close when degree 2 is lowered.
This scale on guitar 🎸
See how A# Chromatic scale looks on guitar.
Circle of fifths
The major key on the same tonic and its neighbouring keys on the circle of fifths.
Connections
Practice
Keyboard Trainer
Reinforce it in practice — play and name notes on the interactive keyboard.