A Messiaen's Mode #7 Piano Scale
Piano scale diagram
A Messiaen's Mode #7 Scale — 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 Piano, the notes are A, Bb, B, C, D, D#, E, F, F#, G#. 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, Bb, B, C, D, D#, E, F, F#, G#
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
How to Play A Messiaen's Mode #7 on Piano
On piano, the A Messiaen's Mode #7 scale uses 4 black keys. With several black keys involved, let the thumb naturally fall on white keys where possible. Practice hands separately at first, paying attention to smooth thumb-under transitions.
The A Messiaen's Mode #7 scale contains both sharps and flats (3 sharps, 1 flat), which is common in altered and exotic scales. This scale does not follow a traditional major or minor key signature, so reading from sheet music may require accidentals.
Practice Routine
Set a metronome to 80 BPM and play the A Messiaen's Mode #7 scale in groups of four notes, shifting the starting note each repetition. This builds muscle memory across the entire scale range. After a week, try improvising short 4-bar phrases using only these notes.
Experiment with simple two-chord vamps rooted on A to let the characteristic intervals of the Messiaen's Mode #7 scale come through clearly.
Piano Tips
At the piano, try voicing the A Messiaen's Mode #7 scale in the left hand as blocked intervals (thirds or sixths) while the right hand plays the melody. This develops your harmonic ear and comping skills simultaneously.
The A Messiaen's Mode #7 scale contains 10 notes (A, Bb, B, C, D, D#, E, F, F#, G#). Use the interactive piano diagram above to explore this scale on Piano.