Triads · A# root / B♭
A#m / B♭m
A darker, more introspective triad. Widely used in classical and popular music.
Notes in A#m
A# / Bb is a favourite for horn players and jazz musicians. Many blues and jazz standards are in Bb.
Identify the Chord Quality on A#
Each chord below is played on A#. Listen and identify whether you heard A#m, A#m, A#7, or another quality — the hardest and most useful ear training skill.
Minor in All 12 Keys
Other Chords in A#
Related Triads
About the A#m Chord
The A#m chord is a minor chord built on A# (also written B♭m). It contains the notes Bb, Db, F — the root, third, and fifth.
A darker, more introspective triad. Widely used in classical and popular music. Practising the A#m chord across different voicings and contexts builds the harmonic recognition that lets you identify it instantly in any musical setting — whether in a band mix, a recording, or a live performance.