How to play D#m7b5: a half-diminished (m7b5) built on D#, with 2 ways to play it, the notes, the keys it belongs to, and songs that use it.
The first diagram is a common voicing: played at the first few frets. An X above a string means don't play it; an O means play it open.
Frets from the low E string to the high E string: x x 1 2 2 2 (x = not played).
| Note | D# | F# | A | C# |
|---|---|---|---|---|
| Interval | R | b3 | b5 | b7 |
D#m7b5 is a half-diminished (m7b5) with D# as its root. The full theoretical spelling is D#, F#, A, C#. This voicing sounds every chord tone.
D#m7b5 is a diatonic chord (built from the key's own notes) in 1 major key and 2 minor keys. The roman numeral is the chord's place in that key; tap a key for all of its chords.
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D#m7b5 is spelled D#, F#, A, C#: the root, minor 3rd, flat 5th, flat 7th. The common guitar voicing sounds every one of them.
Frets from the low E string to the high E string: x x 1 2 2 2 (x means the string is not played). Fret the D string at the 1st fret. Add the G, B and high E strings at the 2nd fret. Strum from the D string down; the low E and A strings stay silent.
D#m7b5 belongs to 3 keys: E major (the viiø chord), C# minor (the iiø) and Bb minor (the ivø, from the harmonic minor).
