A# Messiaen's Mode #7 Guitar Scale — Open D

Guitar scale in Open D tuning — fretboard diagram

A# Messiaen's Mode #7 in Open D — Notes and Intervals

The A# Messiaen's Mode #7 scale is a nearly-chromatic scale that serves as the parent for many other symmetrical systems. On Guitar, the notes are A#, B, C, C#, D#, E, F, F#, G, A. It represents divine authority and the vast, complex forces of the universe in Messiaen's musical language. Commonly used in Contemporary Classical, Experimental, Avant-Garde. Notable players include Olivier Messiaen. Use in complex, multi-layered compositions. Its near-chromatic density provides maximum harmonic flexibility.

Notes: A#, B, C, C#, D#, E, F, F#, G, A

Intervals: 1P, 2m, 2M, 3m, 4P, 4A, 5P, 6m, 6M, 7M

Degrees: 1 b2 3 b4 5 #6 7 b8 9 10

Formula: H-H-H-W-H-H-H-H-W-H

Number of notes: 10

Tuning: Open D (D-A-D-F#-A-D)

About Open D Tuning

Open D tuning (D-A-D-F#-A-D) produces a full D major chord when strummed open, creating a warm, resonant sound that has been a staple of slide guitar, folk, and acoustic music for over a century. The three D strings create a deep, droning foundation that makes even simple chord shapes sound lush and full.

Open D is closely related to Open E (same intervals, just a whole step lower) but puts less tension on the guitar neck, making it safer for acoustic instruments. It was a favorite of Joni Mitchell, who used it extensively for her unique chord voicings, and Bob Dylan, who popularized it in folk-rock. For slide players, Open D provides the same intuitive major-chord-at-any-fret approach as Open G but with a warmer, deeper character.

FolkBluesSlide GuitarAcousticSinger-SongwriterCountry

Notable artists: Joni Mitchell, Bob Dylan, Richie Havens, Bruce Cockburn, Elmore James

Best for: Slide guitar, folk fingerpicking, singer-songwriter arrangements, and acoustic compositions with rich open-string resonance

Explore This Scale in Other Tunings

← All Guitar scales in Open D tuning