piano scale
A♭ Lydian dominant
A♭1B♭2C3D♯4E♭5F6G♭♭7
Raised fourth and flattened seventh at once — the fourth mode of melodic minor.
The same sounds spelled from the other side are G♯ Lydian dominant.
Written out
Every accidental is written in, rather than left to a key signature, so the letters can be read one at a time.
The step pattern
A♭WB♭WCWDHE♭WFHG♭WA♭
What is true of it
A♭ Lydian dominant is A♭, B♭, C, D, E♭, F and G♭, and back to A♭.
Its steps are W – W – W – H – W – H – W, where W is a whole step and H a half.
On the same tonic, A♭ Lydian differs from it by exactly one note.
Chords made only of these notes
CdimdiminishedCm7♭5half-diminished seventhDdimdiminishedDaugaugmentedDm7♭5half-diminished seventhE♭mminorFmminorFm7minor seventh
Found by testing every chord in the catalogue against these 7 sounds, not chosen.
Other scales on A♭
A♭ Phrygian dominantexoticA♭ alteredexoticA♭ double harmonicexoticA♭ majormajorA♭ natural minorminorA♭ harmonic minorminor
C lyd domC♯ lyd domD♭ lyd domD lyd domD♯ lyd domE♭ lyd domE lyd domF lyd domall 374