How to play Gbm13: a minor 13th built on Gb, with 1 voicing, the notes, and the intervals.
The first diagram is a common voicing: played at the first few frets. An X above a string means don't play it; an O means play it open.
The same chord in other positions on the neck: movable shapes transposed to Gb. Open any of them in the Diagram Maker below to adjust the fingering.
| Note | Gb | Bbb | Fb | Eb |
|---|---|---|---|---|
| Interval | R | b3 | b7 | 13 |
Gbm13 is a minor 13th with Gb as its root. The full theoretical spelling is Gb, Bbb, Db, Fb, Ab, Cb, Eb. This voicing omits the 5th and 9th and 11th, the tones guitarists drop first when fitting a chord onto six strings. A note on 13th chords: the root, 3rd, 7th, and 13th are generally considered sufficient in practice, although the technical definition spells the 9th and 11th as part of the chord too.
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