How do you play the F# m7(alt)/C# chord?

To play the F# m7(alt)/C# chord on piano, play the F# m7(alt) chord (F#, A, D, E and A) with C# as the lowest bass note. Place the C# 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# m7(alt)/C# chord means a F# m7(alt) chord with C# in the bass.

F# m7(alt)/C#

Q: What notes are in the F# m7(alt)/C# chord?

The F# m7(alt)/C# chord uses the 5 notes of the F# m7(alt) chord — F# (Perfect unison), A (Minor third), D (Minor sixth), E (Minor seventh) and A (Minor tenth) — with C# played as the bass note in the lowest register.

The F# m7(alt) chord consists of the F# (Perfect unison), A (Minor third), D (Minor sixth), E (Minor seventh) and A (Minor tenth) notes, with C# as the bass note.

Piano keyboard showing the notes for a F# m7(alt)/C# chord

How to play the F# m7(alt)/C# chord

Play C# as the lowest bass note in the left hand
Find F# (Root) on the piano keyboard
Add A (Minor third) — 3 semitones above F#
Add D (Minor sixth) — 8 semitones above F#
Add E (Minor seventh) — 10 semitones above F#
Add A (Minor tenth) — 15 semitones above F#
Press all 6 notes simultaneously to sound the F# m7(alt)/C# chord

Related chords with different root

D maj9
F# m7(b13)

Related slash chords

D add2/C#
D add9/C#
F# m7(#5)/C#