A#7 chord on piano

A Sharp Dominant Seventh, also written Bb7. Notes: A#, D, F and G#.

A#7 piano chord, root positionC4DFC5A#G#
Root position. Tap any key to hear it.

How to play A#7

  1. Find A# just below middle C. That is the root.
  2. Add D, F and G# above it, skipping the keys in between.
  3. Right hand fingering: 1-2-3-5. Left hand: 5-3-2-1.

Notes

A#root
D3 · major third
F5 · perfect fifth
G#b7 · minor seventh

A#7 inversions

An inversion moves the lowest note up an octave. Same notes, smoother jumps between chords.

A#7 Root positionC4DFC5A#G#

Root position

A# · D · F · G#
A#7 1st inversionC4DFC5G#A#

1st inversion

D · F · G# · A#
A#7 2nd inversionC4FC5DG#A#

2nd inversion

F · G# · A# · D
A#7 3rd inversionC4C5DFG#A#

3rd inversion

G# · A# · D · F

Notes and theory

A#root
D3 · major third
F5 · perfect fifth
G#b7 · minor seventh

The dominant seventh adds a minor seventh to a major triad. It sounds restless and wants to resolve, which is why it shows up right before the home chord and all over blues. The formula is 1 3 5 b7, and you will also see it written as A#dom7. Strictly by music theory the notes are spelled A#, C##, E# and G#; C## is the same key as D and E# is the same key as F.

Keys that use A#7

More A# chords

All A# piano chords

dominant seventh chords in every key

Questions

What notes are in the A#7 chord?

A#7 (A sharp dominant seventh) is made of four notes: A# (root), D (major third), F (perfect fifth) and G# (minor seventh).

How do you play A#7 on piano?

Play A#, D, F and G# together. With the right hand use fingers 1-2-3-5; with the left hand use 5-3-2-1.

What are the inversions of A#7?

Root position: A# D F G#. 1st inversion: D F G# A#. 2nd inversion: F G# A# D. 3rd inversion: G# A# D F.

What key is A#7 in?

A#7 belongs to 2 keys: E flat major (as the V7 chord) and C minor (as the VII7 chord).

What does a dominant seventh chord sound like?

The dominant seventh adds a minor seventh to a major triad. It sounds restless and wants to resolve, which is why it shows up right before the home chord and all over blues.