Modal RunsGmaj13 Chord (Major 13th)
Major 13th is the "whole cake" major chord — root through the 7th, 9th, and 13th, every extension a major triad can carry. The notes of Gmaj13 are G, B, D, F#, A, E.
About as lush as tonal harmony gets: big-band endings, sophisticated jazz ballads, the chord that closes a tune on maximum warmth.
Gmaj13 voicings on guitar
Every playable, root-in-the-bass grip standard tuning offers, computed from the chord’s own formula — not a fixed shape library.
In practice, guitarists voice only 4-5 of these six notes at once — try root, 3rd, 7th, 13th as a compact version that still carries the full colour.
Formula and intervals
R - 3 - 5 - 7 - 2 - 6 — 6 notes.
Scales that fit Gmaj13
Every scale below contains all of this chord’s notes — safe territory to improvise in over it.