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

To play the D# m7(alt)/C# chord on piano, play the D# m7(alt) chord (D#, F#, B, C# and F#) 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 D# m7(alt)/C# chord means a D# m7(alt) chord with C# in the bass.

D# m7(alt)/C#

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

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

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

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

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

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

Related chords with different root

D# m7(#5)
D# m7(alt)
B add2
B add9

Related slash chords

D# m(#5)/C#
B major/C#