The chromatic scale runs through all twelve notes of Western music, each separated from the next by a half step (UK: semitone), dividing the octave into twelve equal steps. Unlike the major and minor scales, it has no tonic and no tonal hierarchy: all its notes are equally spaced.
What is the chromatic scale?
It is the series of the twelve different pitches that fit in an octave, each a half step from the previous one (thirteen notes if you count the arrival octave). It is therefore not a seven-note diatonic scale, but the complete sound material from which all other scales are drawn. Its character is neutral and tense at the same time, with no point of rest.
How it is written: sharps going up, flats going down
As a convention for readability, when ascending the altered notes are written with sharps and when descending with flats, so that the accidental points in the direction of the movement. Writing C♯ or D♭ for the same pitch reflects the difference between a diatonic and a chromatic half step.
Ascending from C: C · C♯ · D · D♯ · E · F · F♯ · G · G♯ · A · A♯ · B · C.
Descending from C: C · B · B♭ · A · A♭ · G · G♭ · F · E · E♭ · D · D♭ · C.
To practice this spelling with any starting note, ascending or descending, there is an interactive exercise: build the chromatic scale.
What it is used for
- Chromatic passing notes: connecting two notes of the diatonic scale through the note in between, very common in melodies and bass lines.
- Color and tension: adding chromaticism to a tonal phrase without changing key.
- Voice leading: approaching the target note of a chord by half step, a central device in jazz and Romantic music.
- Technique: it is the warm-up exercise par excellence on any instrument.
The chromatic scale in every key
The chromatic scale written from each of the 12 starting notes, with its correct spelling and its staff:
| Starting note | Notes (ascending) |
|---|---|
| C | C C♯ D D♯ E F F♯ G G♯ A A♯ B |
| C♯ | C♯ D D♯ E F F♯ G G♯ A A♯ B C |
| D | D D♯ E F F♯ G G♯ A A♯ B C C♯ |
| E♭ | E♭ E F F♯ G G♯ A A♯ B C C♯ D |
| E | E F F♯ G G♯ A A♯ B C C♯ D D♯ |
| F | F F♯ G G♯ A A♯ B C C♯ D D♯ E |
| F♯ | F♯ G G♯ A A♯ B C C♯ D D♯ E F |
| G | G G♯ A A♯ B C C♯ D D♯ E F F♯ |
| A♭ | A♭ A A♯ B C C♯ D D♯ E F F♯ G |
| A | A A♯ B C C♯ D D♯ E F F♯ G G♯ |
| B♭ | B♭ B C C♯ D D♯ E F F♯ G G♯ A |
| B | B C C♯ D D♯ E F F♯ G G♯ A A♯ |
Staff for each starting note
The solfège names used in Spanish-, French- and Italian-speaking countries (Do, Re, Mi, Fa, Sol, La, Si) correspond to C, D, E, F, G, A, B.