F Altered
All four altered tensions — ♭9 ♯9 ♯11 ♭13 — over a dominant 7th. The 7th mode of melodic minor.
Audio source: tonejs-instruments by Nick Brosowsky (MIT)
What notes are in the F Altered scale?
The F Altered scale uses the notes F, G♭, A♭, B𝄫, C♭, D♭, E♭ (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 F to get the F Altered scale.
What chords work over F 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 F Altered on Piano?
On piano, scales typically use a 1-2-3 / 1-2-3-4 thumb-under pattern for white-key scales. Black-key scales (F♯, G♭, etc.) shift the thumb-under positions onto white keys for ergonomic clearance. Hanon Exercise No. 1 and Czerny Op. 599 No. 1 work through the canonical pattern.
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.