piano scale
D♭ Lydian dominant
D♭1E♭2F3G♯4A♭5B♭6C♭♭7
Raised fourth and flattened seventh at once — the fourth mode of melodic minor.
The same sounds spelled from the other side are C♯ 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
D♭WE♭WFWGHA♭WB♭HC♭WD♭
What is true of it
D♭ Lydian dominant is D♭, E♭, F, G, A♭, B♭ and C♭, and back to D♭.
Its steps are W – W – W – H – W – H – W, where W is a whole step and H a half.
On the same tonic, D♭ Lydian differs from it by exactly one note.
Chords made only of these notes
D♭majorD♭7dominant seventhE♭majorE♭augaugmentedE♭7dominant seventhFdimdiminishedFm7♭5half-diminished seventhGdimdiminished
Found by testing every chord in the catalogue against these 7 sounds, not chosen.
Other scales on D♭
D♭ Phrygian dominantexoticD♭ alteredexoticD♭ double harmonicexoticD♭ majormajorD♭ natural minorminorD♭ harmonic minorminor
C lyd domD lyd domD♯ lyd domE♭ lyd domE lyd domF lyd domF♯ lyd domG♭ lyd domall 374