A Messiaen's Mode #4 Guitar Scale
Guitar scale in DADGAD tuning — fretboard diagram
A Messiaen's Mode #4 in DADGAD — Notes and Intervals
The A Messiaen's Mode #4 scale is a symmetrical scale designed to have no single tonic. On Guitar, the notes are A, Bb, B, D, D#, E, F, G#. Messiaen used it to create what he called the charm of impossibilities, evoking a sense of spiritual wonder where the listener loses their sense of direction. Commonly used in Contemporary Classical, Film Scores, Experimental. Notable players include Olivier Messiaen. Use for avant-garde composition and film scoring where traditional tonal direction should dissolve.
Notes: A, Bb, B, D, D#, E, F, G#
Intervals: 1P, 2m, 2M, 4P, 4A, 5P, 6m, 7M
Degrees: 1 b2 3 4 #5 6 b7 8
Formula: H-H-WH-H-H-H-WH-H
Number of notes: 8
Tuning: DADGAD (D-A-D-G-A-D)
About DADGAD Tuning
DADGAD tuning creates an open Dsus4 chord when strummed open, producing a hauntingly beautiful, droning sound that has become synonymous with Celtic folk music and modern acoustic songwriting. The tuning's natural resonance and overtones make even simple fingerpicking patterns sound rich and complex.
Popularized by Davey Graham in the 1960s and later championed by Pierre Bensusan and Jimmy Page, DADGAD has become one of the most beloved alternate tunings for acoustic guitarists. Its suspended quality — neither clearly major nor minor — creates an ethereal, meditative atmosphere that invites exploration. The tuning excels at creating drone-based arrangements where open strings ring against fretted notes.
Notable artists: Pierre Bensusan, Jimmy Page, Andy McKee, Davey Graham, Laurence Juber
Best for: Celtic folk, acoustic songwriting, drone-based fingerpicking, and meditative compositions
Musical Character
Creates what Messiaen called 'the charm of impossibilities' — the listener loses their sense of tonal direction, creating a spiritual disorientation that evokes wonder.