The major7 add13 chord extends major-seventh harmony with a thirteenth color, often heard as a wide upper sixth above the root. A practical formula is 1-3-5-7-13. The result is clearly major and stable, but more spacious and contemporary than a plain maj7.

Construction

In Cmaj7(add13), a common set is C-E-G-B-A. The ninth is not required by the symbol, though many real-world voicings include it. Keep spelling tied to harmonic context rather than fixed pitch-class shortcuts.

Sound Character

The chord feels luxurious and open: maj7 gives refined stability, while 13 adds width and gentle lift. Compared with dominant-thirteenth sounds, it carries less pull and more sustained color.

Usage

Typical in jazz, neo-soul, R&B, modern pop, and cinematic pads as enriched I or IV harmony, soft ending sonorities, and long-duration accompaniment textures.

Examples

Neo-soul keyboard endings with broad top-voice color
Jazz ballad tonic voicings that avoid dominant tension
Pop pads needing depth without harmonic aggression

Play

Prioritize 3 and 7 for identity, place 13 in the upper register, and omit 5 if needed for clarity. Manage spacing so 7 and 13 do not form cramped clusters.

Harmonic function in progressions

It behaves as stable extended major, not as a dominant driver. Small inner movements from 13 or 7 can create motion while the chord still reads as a resting color.