How do you play the F maj9(#11)/A# chord?

To play the F maj9(#11)/A# chord on piano, play the F maj9(#11) chord (F, A, C, E, G and B) with A# as the lowest bass note. Place the A# note below the other chord tones. Slash chords specify a particular bass note different from the chord root.

What is a slash chord?

A slash chord (or compound chord) is written as Chord/Bass and specifies both a chord and a bass note. The note to the right of the slash is played as the lowest note. The F maj9(#11)/A# chord means a F maj9(#11) chord with A# in the bass.

F maj9(#11)/A#

Q: What notes are in the F maj9(#11)/A# chord?

The F maj9(#11)/A# chord uses the 6 notes of the F maj9(#11) chord — F (Perfect unison), A (Major third), C (Perfect fifth), E (Major seventh), G (Major ninth) and B (Augmented eleventh) — with A# played as the bass note in the lowest register.

The F maj9(#11) chord consists of the F (Perfect unison), A (Major third), C (Perfect fifth), E (Major seventh), G (Major ninth) and B (Augmented eleventh) notes, with A# as the bass note.

Piano keyboard showing the notes for a F maj9(#11)/A# chord

How to play the F maj9(#11)/A# chord

Play A# as the lowest bass note in the left hand
Find F (Root) on the piano keyboard
Add A (Major third) — 4 semitones above F
Add C (Perfect fifth) — 7 semitones above F
Add E (Major seventh) — 11 semitones above F
Add G (Major ninth) — 14 semitones above F
Add B (Augmented eleventh) — 18 semitones above F
Press all 7 notes simultaneously to sound the F maj9(#11)/A# chord