Bb Major Seventh Sharp Fifth (Bbmaj7(#5)) chords on guitar

To play Bbmaj7#5, the Bb major seventh sharp five chord, you need Bb, D, F# and A, the root, major third, raised fifth and major seventh. The augmented triad underneath is symmetrical, so its three notes divide the octave into three equal parts. With a major seventh it does not carry the pull of a dominant seventh chord, and the colour is floating rather than tense.

Every note of Bbmaj7#5 sits inside the Bb Lydian augmented scale, so that scale is the natural place to look for melody notes. The Ionian #5 scale is the major scale with a raised fifth, the one note that separates it from a plain major scale.

Bb major 7th with sharp 5th guitar chord is also written as Bbmaj7(#5), Bbmaj7#5, BbM7(#5) or BbΔ7(#5).

Bbmaj7#5 Chord Notes and Formula

Notes that compose the Bb maj7(#5) chord:

Bb D F# A

Chord Structure:

Formula: 1 3 #5 7

Same chord, different name: Bbmaj7#5 is also written as A#maj7#5 (A# major seventh sharp five).

Bb Maj7(#5) Chord Interactive Fretboard

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More Bb Chords

Bb Bbm Bb7 Bbm7 Bbmaj7 Bbsus4 Bbsus2 Bbadd9 Bbdim Bb9 Bb6 Bbaug Bbm6 Bb7sus4

Want to know how this chord is built? Read chord symbols and intervals, or browse all Bb guitar chords.

Play This Chord With Other Roots

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Created by

Giancarlo Facoetti

Giancarlo is a musician (teaching guitar since 2000), software engineer, AI consultant and published researcher

FAQ

What notes make up Bbmaj7#5?

Bbmaj7#5 is spelled Bb, D, F# and A. That gives a root, a major third, a raised fifth and a major seventh. The F# replaces the F of an ordinary major seventh chord.

How is Bbmaj7#5 different from Bbmaj7?

Bbmaj7 has the perfect fifth F. Bbmaj7#5 raises it a semitone to F#. The other three notes, Bb, D and A, stay exactly as they were.

Is Bbmaj7#5 the same chord as A#maj7#5?

Yes. A#maj7#5 uses the same pitches, spelled A#, C##, E## and G##. Bbmaj7#5 is the readable version and has no double sharps.

Which scale covers Bbmaj7#5?

The Bb Lydian Augmented Scale (Bb, C, D, E, F#, G, A) holds all four notes. The chord takes its 1st, 3rd, 5th and 7th degrees.