A Messiaen's Mode #3 Guitar Scale
Guitar scale in Open G tuning — fretboard diagram
A Messiaen's Mode #3 in Open G — Notes and Intervals
The A Messiaen's Mode #3 scale is a complex nine-note symmetrical scale used by Olivier Messiaen. On Guitar, its notes are A, B, C, C#, D#, E, F, G, G#. It creates a cosmic, suspended tonality that feels both religious and scientific, evoking a sense of divine awe. Commonly used in Contemporary Classical, Film Scores, Ambient, Experimental. Notable players include Olivier Messiaen, Gyorgy Ligeti, Thomas Ades. Use for creating atmospheres of 'cosmic awe'. Not bound to traditional chord progressions — works best over sustained harmonies or ostinato patterns.
Notes: A, B, C, C#, D#, E, F, G, G#
Intervals: 1P, 2M, 3m, 3M, 4A, 5P, 6m, 7m, 7M
Degrees: 1 2 b3 4 #5 6 b7 b8 9
Formula: W-H-H-W-H-H-W-H-H
Number of notes: 9
Tuning: Open G (D-G-D-G-B-D)
About Open G Tuning
Open G tuning (D-G-D-G-B-D) produces a G major chord when strummed open, making it the definitive tuning for slide guitar and delta blues. The tuning's natural consonance means that barring across any fret gives you a major chord, which is why it's been the backbone of blues and roots music for over a century.
From Robert Johnson to Keith Richards, Open G has shaped some of the most iconic music ever recorded. Keith Richards famously removes the low 6th string entirely in this tuning, creating his signature five-string sound on songs like 'Start Me Up' and 'Brown Sugar'. For slide players, Open G is essential — it allows clean, singing slide lines across all strings with minimal effort.
Notable artists: Keith Richards, Robert Johnson, Ry Cooder, Joni Mitchell, The Black Crowes
Best for: Slide guitar, delta blues, Keith Richards-style rock riffs, and open-string fingerpicking
Musical Character
A 9-note scale with limited transposition — only 4 unique transpositions exist before repeating. Creates a cosmic, suspended tonality that is neither major nor minor but something transcendent.