piano scale
D♯ natural minor
D♯1E♯2F♯♭3G♯4A♯5B♭6C♯♭7
The major scale started from its sixth degree: same seven notes, a different centre of gravity.
The same sounds spelled from the other side are E♭ natural minor.
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♯HF♯WG♯WA♯HBWC♯WD♯
What is true of it
D♯ natural minor is D♯, E♯, F♯, G♯, A♯, B and C♯, and back to D♯.
Its steps are W – H – W – W – H – W – W, where W is a whole step and H a half.
It costs 6 alterations to write — near the limit of what a key signature can carry.
On the same tonic, D♯ harmonic minor differs from it by exactly one note.
Chords made only of these notes
C♯majorC♯7dominant seventhD♯mminorD♯m7minor seventhF♯majorF♯maj7major seventhG♯mminorG♯m7minor seventh
Found by testing every chord in the catalogue against these 7 sounds, not chosen.