Chords

Bb Major thirteenth sharp eleventh

Bb · D · F · A · C · E · G

Bb Major thirteenth sharp eleventh (Bbmaj13#11) is a major chord of 7 notes: Bb · D · F · A · C · E · G.

Also written BbM13#11 · BbM13+4 · BbM13#4

Bb Major thirteenth sharp eleventh

Bb · D · F · A · C · E · G

Play it on your instrument
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Voicings on the piano
VoicingNotesPlay it on your instrument
Closed, root positionBb3 · D4 · F4 · A4 · C5 · E5 · G5
Open (drop 2)Bb3 · D4 · E4 · F4 · A4 · C5 · G5
ShellBb3 · D4 · A4
RootlessD3 · A3 · C4 · E4 · G4

Tap a key or a fret to hear it.

Anatomy

Bb Major thirteenth sharp eleventh (Bbmaj13#11) contains the notes Bb · D · F · A · C · E · G, each with a role measured as an interval from the root.

Read on: how triads are built · seventh chords · extensions

Inversions

An inversion of Bb Major thirteenth sharp eleventh puts a chord tone other than Bb in the bass; the name after the slash is that bass note.

Where it lives

The keys and the scales Bb Major thirteenth sharp eleventh belongs to.

In which keys

Bb Major thirteenth sharp eleventh is diatonic to 2 keys; the numeral is its degree and the label its harmonic function.

Extensions beyond the seventh count when every note sits in the key.

Scales that contain it

Bb Major thirteenth sharp eleventh fits inside these scales, each built on Bb.

Understanding the Bb Major thirteenth sharp eleventh chord

Names and symbols

Bbmaj13#11 is the chord symbol for Bb Major thirteenth sharp eleventh; it is also written BbM13#11, BbM13+4, BbM13#4.

maj7, M7, Δ7, ma7 and ^7 all mean the major seventh. A lowercase m7 is a different chord, the minor seventh, so the capital letter and the triangle are the only things keeping the two apart on a chart.

Common questions

What notes are in the Bb Major thirteenth sharp eleventh chord?
The Bb Major thirteenth sharp eleventh chord contains the notes Bb · D · F · A · C · E · G: the root Bb with the intervals 1P, 3M, 5P, 7M, 9M, 11A, 13M stacked above it. Play them together for the chord or one after another for an arpeggio. The lowest note is normally Bb, but any chord tone can take the bass in an inversion.
What intervals make up the Bb Major thirteenth sharp eleventh chord?
Measured from Bb, the Bb Major thirteenth sharp eleventh chord stacks the intervals 1P, 3M, 5P, 7M, 9M, 11A, 13M. The quality of the third and of the seventh, if there is one, is what gives the chord its character; the rest of the notes colour it. Every interval in the formula links to its own page, with its sound.
How do I play the Bb Major thirteenth sharp eleventh chord?
On guitar the most common Bb Major thirteenth sharp eleventh shape is 655555, read from the lowest string to the highest; the instrument panel above shows several more with their fingerings. On piano play Bb3 · D4 · F4 · A4 · C5 · E5 · G5 with the right hand, or move the root down into the left hand and keep the rest above it. Every shape on this page plays when you press it.

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