How do you play the C m(maj11)/Bb chord?

To play the C m(maj11)/Bb chord on piano, play the C m(maj11) chord (C, Eb, G, B, D and F) with Bb as the lowest bass note. Place the Bb 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 C m(maj11)/Bb chord means a C m(maj11) chord with Bb in the bass.

C m(maj11)/Bb

Q: What notes are in the C m(maj11)/Bb chord?

The C m(maj11)/Bb chord uses the 6 notes of the C m(maj11) chord — C (Perfect unison), Eb (Minor third), G (Perfect fifth), B (Major seventh), D (Major ninth) and F (Perfect eleventh) — with Bb played as the bass note in the lowest register.

The C m(maj11) chord consists of the C (Perfect unison), Eb (Minor third), G (Perfect fifth), B (Major seventh), D (Major ninth) and F (Perfect eleventh) notes, with Bb as the bass note.

Piano keyboard showing the notes for a C m(maj11)/Bb chord

How to play the C m(maj11)/Bb chord

Play Bb as the lowest bass note in the left hand
Find C (Root) on the piano keyboard
Add Eb (Minor third) — 3 semitones above C
Add G (Perfect fifth) — 7 semitones above C
Add B (Major seventh) — 11 semitones above C
Add D (Major ninth) — 14 semitones above C
Add F (Perfect eleventh) — 17 semitones above C
Press all 7 notes simultaneously to sound the C m(maj11)/Bb chord