A♯dim7
Dim 7 · A♯ – C♯ – E – G
- A♯R
- C♯m3
- E♭5
- G6
Guitar voicings
Piano
- Root
- Third / sus
- Fifth
- Sixth / seventh
- Extension
About the A♯dim7 chord
The A♯dim7 chord (Dim 7) is built from A♯ (the root), C♯ (a minor third), E (a diminished fifth) and G (a major sixth). Diminished seventh chords are symmetrical and restless, handy for dramatic passing motion.