A♭ Chromatic Scale

Notes in the A♭ Chromatic Scale

Interval Pattern

Harmony

The chromatic scale contains all 12 pitch classes and has no diatonic harmony — all chromatic passages use all pitches equally. See individual chord types for specific harmonic structures.

Key Signature

4 ♭ — The A♭ key signature uses B♭, E♭, A♭, D♭.

A♭ Chromatic Scale in Practice

The A♭ Chromatic Scale uses the key signature of 4 flats (B♭, E♭, A♭, D♭). Ab major has four flats and a full, somewhat dark sound. It is a common key in Romantic piano music and is frequently encountered in orchestral and choral writing. On guitar, A♭ positions offer comfortable transposing instrument keys for this scale.

The chromatic scale includes all 12 pitches within an octave, each a half step apart. It has no tonal center and is used as a reference for all other scales and as a compositional device.

Tuning Frequencies Across Temperaments

Frequencies shown at A=440 Hz. View full temperament data for any note.

Related Scales

Transposing Instruments: A♭ Chromatic Scale

A♭ is a natural key for B♭ instruments (trumpet, clarinet, tenor sax), which sound a major second lower than written. B♭ instruments reading in C produce A♭ concert pitch. E♭ instruments (alto sax, baritone sax) reading in A♭ sound a major sixth lower.