Finger Positions

Root Note B

Name B minor augmented over C#

Intervals 1P-3m-5A

Relative Minor G#m

Notes C#, B, D, G

Aliases Bm#5, B-#5, Bm+

How to play the Bm#5/C# Chord

The Bm#5/C# is a fundamental augmented 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 minor augmented over C# is built using the 1P, 3m, 5A intervals. In the key of B Major, this chord functions as the I chord.

Common Progressions

In music composition, the Bm#5/C# 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

Minor Harmonic Minor Diminished Phrygian Locrian Vietnamese 1 Pelog Hirajoshi Malkos Raga Augmented Altered Locrian #2 Ultralocrian Augmented Heptatonic Balinese

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

Acoustic & Digital Analysis

Digital footprint of the Bm#5/C# chord for MIDI programming and synthesizer sound design.

MIDI Numbers 61, 71, 62, 67

Frequencies (Hz)

277.1826309768721, 493.8833012561241, 293.6647679174076, 391.99543598174927