Finger Positions

Fm13/B diagram
Root Note F
Name F minor thirteenth over B
Intervals 1P-3m-5P-7m-9M-13M
Relative Minor Dm
Notes B, F, Ab, C, Eb, G, D
Aliases Fm13, F-13

How to play the Fm13/B Chord

The Fm13/B is a fundamental dominant 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 F minor thirteenth over B is built using the 1P, 3m, 5P, 7m, 9M, 13M intervals. In the key of F Major, this chord functions as the I chord.

Common Progressions

In music composition, the Fm13/B chord is often used to create tension or resolution.

I-V-vi-IV

vi-IV-I-V

The Diatonic Family

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

Scale Compatibility

View All Scales
Dorian Dorian #4 Bebop Minor Composite Blues Chromatic

* 5 scales found containing the notes B, F, Ab, C, Eb, G, D.

Acoustic & Digital Analysis

Digital footprint of the Fm13/B chord for MIDI programming and synthesizer sound design.

MIDI Numbers 71, 65, 68, 60, 63, 67, 62
Frequencies (Hz)

493.8833012561241, 349.2282314330039, 415.3046975799451, 261.6255653005986, 311.1269837220809, 391.99543598174927, 293.6647679174076