piano scale
E natural minor
E1F♯2G♭3A4B5C♭6D♭7
The major scale started from its sixth degree: same seven notes, a different centre of gravity.
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
EWF♯HGWAWBHCWDWE
What is true of it
E natural minor is E, F♯, G, A, B, C and D, and back to E.
Its steps are W – H – W – W – H – W – W, where W is a whole step and H a half.
On the same tonic, E harmonic minor differs from it by exactly one note.
Chords made only of these notes
CmajorCmaj7major seventhDmajorD7dominant seventhEmminorEm7minor seventhF♯dimdiminishedF♯m7♭5half-diminished seventh
Found by testing every chord in the catalogue against these 7 sounds, not chosen.