Triads · A# root / B♭
A#sus2 / B♭sus2
A suspended chord with the major 2nd replacing the third. Open and airy.
Notes in A#sus2
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#sus2, A#m, A#7, or another quality — the hardest and most useful ear training skill.
Sus2 in All 12 Keys
Other Chords in A#
Related Triads
About the A#sus2 Chord
The A#sus2 chord is a sus2 chord built on A# (also written B♭sus2). It contains the notes Bb, C, F — the root, third, and fifth.
A suspended chord with the major 2nd replacing the third. Open and airy. Practising the A#sus2 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.