D+7(#9) Augmented
The D+7(#9) chord is built from the notes D – F# – A# – C – E#.
Piano sound loads on first tap.
Also known as
D+7#9D7#5#9D7#9#5D7#9add#5D7(#5#9)D7+#9Daug7#9Daug7(no5)#9
Chord tones, one by one
DRoot
Root
The fundamental note the chord is built on — D.
F#Third
Major third
Four semitones — makes the chord major (brighter, happier).
A#Fifth
Augmented fifth (♯5)
Eight semitones — a sharp fifth. Restless and dreamy, typical of augmented chords.
CSeventh
Minor seventh (♭7)
Ten semitones — the dominant/minor seventh. Adds bluesy tension (7, m7).
E#Extension
Sharp ninth (♯9)
A ♯9 — the gritty 'Hendrix' tension over a dominant chord.
🎼 Related scales
Altered (super-Locrian)melodic minor a semitone above
🎹 Modal analysis
This chord implies the Altered (super-Locrian) scale; its characteristic note is the ♭13, a dominant's maximum tension. It is a mode of the melodic minor a semitone above.
🎸 Genres
Modern jazz · Post-bop · Fusion