Finger Positions

Gbmaj13 diagram
Root Note Gb
Name Gb major thirteenth
Intervals 1P-3M-5P-7M-9M-13M
Relative Minor Ebm
Notes Gb, Bb, Db, F, Ab, Eb
Aliases Gbmaj13, GbMaj13, Gb^13

How to play the Gbmaj13 Chord

The Gbmaj13 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 Gb major thirteenth is built using the 1P, 3M, 5P, 7M, 9M, 13M intervals. In the key of Gb Major, this chord functions as the I chord.

Common Progressions

In music composition, the Gbmaj13 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 Gb helps with transposition and ear training.

Scale Compatibility

View All Scales
Major Bebop Lydian Bebop Major Ichikosucho Chromatic

* 6 scales found containing the notes Gb, Bb, Db, F, Ab, Eb.

Acoustic & Digital Analysis

Digital footprint of the Gbmaj13 chord for MIDI programming and synthesizer sound design.

MIDI Numbers 66, 70, 61, 65, 68, 63
Frequencies (Hz)

369.9944227116344, 466.1637615180899, 277.1826309768721, 349.2282314330039, 415.3046975799451, 311.1269837220809