A# (Major)

Bb · D · F · 3 notes

Chord

Formula: R – 3 – 5

Bb R

D 3

F 5

Bass note: Bb

The A# chord is a major chord built on A#. It consists of the notes Bb, D, F (scale degrees R, 3, 5).

Major chords are built from a major 3rd (4 semitones) stacked with a minor 3rd (3 semitones), producing a bright, stable sound.

Use the Key Finder to find what key these notes belong to, or the Progression Builder to use this chord in a sequence.