Finger Positions

Root Note B

Name B fifth over D#

Intervals 1P-5P

Relative Minor G#m

Notes D#, B, F#

Aliases B5

How to play the B5/D# Chord

The B5/D# is a fundamental unknown 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 fifth over D# is built using the 1P, 5P intervals. In the key of B Major, this chord functions as the I chord.

Common Progressions

In music composition, the B5/D# 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

Major Pentatonic Major Minor Major Blues Minor Blues Melodic Minor Harmonic Minor Bebop Dorian Lydian Mixolydian Phrygian Ionian Pentatonic Mixolydian Pentatonic Ritusen

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

Acoustic & Digital Analysis

Digital footprint of the B5/D# chord for MIDI programming and synthesizer sound design.

MIDI Numbers 63, 71, 66

Frequencies (Hz)

311.1269837220809, 493.8833012561241, 369.9944227116344