Finger Positions

Root Note B

Name B major thirteenth over C

Intervals 1P-3M-5P-7M-9M-13M

Relative Minor G#m

Notes C, B, D#, F#, A#, C#, G#

Aliases Bmaj13, BMaj13, B^13

How to play the Bmaj13/C Chord

The Bmaj13/C 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 major thirteenth over C is built using the 1P, 3M, 5P, 7M, 9M, 13M intervals. In the key of B Major, this chord functions as the I chord.

Common Progressions

In music composition, the Bmaj13/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

Major Bebop Lydian Bebop Major Ichikosucho Chromatic

* 6 scales found containing the notes C, B, D#, F#, A#, C#, G#.

Acoustic & Digital Analysis

Digital footprint of the Bmaj13/C chord for MIDI programming and synthesizer sound design.

MIDI Numbers 60, 71, 63, 66, 70, 61, 68

Frequencies (Hz)

261.6255653005986, 493.8833012561241, 311.1269837220809, 369.9944227116344, 466.1637615180899, 277.1826309768721, 415.3046975799451