A Altered
All four altered tensions — ♭9 ♯9 ♯11 ♭13 — over a dominant 7th. The 7th mode of melodic minor.
Playback sounds an octave below the written notation — the instrument's concert (sounding) pitch.
Audio source: tonejs-instruments by Nick Brosowsky (MIT)
What notes are in the A Altered scale?
The A Altered scale uses the notes A, B♭, C, D♭, E♭, F, G (one octave; the pattern repeats at higher registers).
What's the Altered scale formula?
The Altered scale follows the interval pattern H W H W W W W, where W = whole step (2 semitones) and H = half step (1 semitone). Apply that pattern starting on A to get the A Altered scale.
What chords work over A Altered?
Altered works over V7alt — ♭9, ♯9, ♯11, ♭13. The 7th mode of melodic minor; resolves down a half step to the I chord.
How do I finger A Altered on Guitar?
On guitar, scales are typically learned as position patterns — three- or four-notes-per-string shapes that move up the neck. The CAGED system positions each scale in five interconnected patterns; the three-notes-per-string approach simplifies modal scales.
When would I use the Altered scale?
All four altered tensions — ♭9 ♯9 ♯11 ♭13 — over a dominant 7th. The 7th mode of melodic minor.