Finger Positions

Bmajb5/A# diagram
Root Note B
Name B majflat fifth over A#
Intervals 1P-3M-5d
Relative Minor G#m
Notes A#, B, D#, F
Aliases

How to play the Bmajb5/A# Chord

The Bmajb5/A# is a fundamental major chord in guitar music. To play this chord correctly, ensure your fingers are placed precisely on the frets indicated in the diagram above.

Music Theory Analysis

From a theoretical perspective, the B majflat fifth over A# is built using the 1P, 3M, 5d intervals. In the key of B Major, this chord functions as the I chord.

Common Progressions

In music composition, the Bmajb5/A# chord is often used to create tension or resolution.

I-V-vi-IV

B → F# → G#m → E

vi-IV-I-V

G#m → E → B → F#

The Diatonic Family

Understanding the "family" of chords that belong to B helps with transposition and ear training.

Triads

B C#m D#m E F# G#m A#dim

7ths

Bmaj7 C#m7 D#m7 Emaj7 F#7 G#m7 A#m7b5

Scale Compatibility

View All Scales

* 0 scales found containing the notes A#, B, D#, F.

Acoustic & Digital Analysis

Digital footprint of the Bmajb5/A# chord for MIDI programming and synthesizer sound design.

MIDI Numbers 70, 71, 63, 65
Frequencies (Hz)

466.1637615180899, 493.8833012561241, 311.1269837220809, 349.2282314330039