Finger Positions

Root Note Bb

Name Bb major thirteenth

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

Relative Minor Gm

Notes Bb, D, F, A, C, G

Aliases Bbmaj13, BbMaj13, Bb^13

How to play the Bbmaj13 Chord

The Bbmaj13 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 Bb major thirteenth is built using the 1P, 3M, 5P, 7M, 9M, 13M intervals. In the key of Bb Major, this chord functions as the I chord.

Common Progressions

In music composition, the Bbmaj13 chord is often used to create tension or resolution.

I-V-vi-IV

Bb → F → Gm → Eb

vi-IV-I-V

Gm → Eb → Bb → F

The Diatonic Family

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

Triads

Bb Cm Dm Eb F Gm Adim

7ths

Bbmaj7 Cm7 Dm7 Ebmaj7 F7 Gm7 Am7b5

Scale Compatibility

View All Scales

Major Bebop Lydian Bebop Major Ichikosucho Chromatic

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

Acoustic & Digital Analysis

Digital footprint of the Bbmaj13 chord for MIDI programming and synthesizer sound design.

MIDI Numbers 70, 62, 65, 69, 60, 67

Frequencies (Hz)

466.1637615180899, 293.6647679174076, 349.2282314330039, 440, 261.6255653005986, 391.99543598174927