D#ø7
Sevenths · D# root / E♭
D#ø7 / E♭ø7
Also called min7♭5. The ii° in minor key ii-V-I progressions.
0 st3 st6 st10 st
Notes in D#ø7
EbRoot
Gb3rd
A5th
Db7th
D# / Eb is the key of choice for many jazz standards and brass-heavy arrangements.
Identify the Chord Quality on D#
Each chord below is played on D#. Listen and identify whether you heard D#ø7, D#m, D#7, or another quality — the hardest and most useful ear training skill.
Half Diminished in All 12 Keys
Other Chords in D#
Related Sevenths
About the D#ø7 Chord
The D#ø7 chord is a half diminished chord built on D# (also written E♭ø7). It contains the notes Eb, Gb, A, Db — the root, third, fifth, and seventh.
Also called min7♭5. The ii° in minor key ii-V-I progressions. Practising the D#ø7 chord across different voicings and contexts builds the harmonic recognition that lets you identify it instantly in any musical setting — whether in a band mix, a recording, or a live performance.