Wiktionary
n. (context music English) a minor key with the notes E♭, F, G♭, A♭, B♭, C♭, D♭
Wikipedia
E-flat minor is a minor scale consisting of the pitches E, F, G, A, B, C, and D. In the harmonic minor, the D is raised to D. Its key signature consists of six flats.
Its relative major is G major (or enharmonically F major) and its parallel major is E major. Its enharmonic equivalent is D minor. Changes needed for the melodic and harmonic versions of the scale are written in with accidentals as necessary.
This key is often popular with jazz or blues influenced keyboard players as, using all the black keys along with the F, it allows for an easily playable blues scale.
Usage examples of "e-flat minor".
Euphie plays an E-flat minor Scale, whilst rolling her eyes about.
The thin piping in the key of E-flat minor jarred with Toby's recommenced strumming in some major key.