Arpeggio · A♯°7 · Piano
The A♯°7 arpeggio is A♯ – C♯ – E – G — chord tones 1 ♭3 ♭5 ?. A♯°7 is passing chords between diatonic chords, and as a 7♭9 without its root; its sound is symmetrical, restless. Below, every A♯, C♯, E, G on the two-octave keyboard is marked, with the root in gold. Press play to hear a one-octave arpeggio, or tap any note.
Visualizer
Piano
Guitar · standard tuning
Play runs the arpeggio up and down one octave. Tap any marked note to hear it. “Show” switches or combines the fretboard and keyboard; “Sound” picks the instrument you hear. Audio is synthesized in the browser.
Reference
| Chord tone | Note | Interval from A♯ |
|---|---|---|
| 1 | A♯ | unison (0 semitones) |
| ♭3 | C♯ | minor 3rd (3 semitones) |
| ♭5 | E | tritone (6 semitones) |
| ? | G | major 6th (9 semitones) |
Goes with: B♭ Diminished (whole–half) (B♭ C D♭ E♭ E G♭ G A). Voicings: A♯°7 voicings on piano.
Common questions
A♯ – C♯ – E – G. As chord tones: 1 ♭3 ♭5 ?. Played one after another instead of together, that is the arpeggio.
A♯°7 is passing chords between diatonic chords, and as a 7♭9 without its root. Its character is symmetrical, restless.
B♭ Dim. W–H (B♭ C D♭ E♭ E G♭ G A) — the arpeggio is the skeleton of that scale, so practise them together.
Play A♯ – C♯ – E – G ascending from A♯, then descend; then start from each chord tone in turn (inversions) so your hand knows the shape from any note.
Keep going
Same arpeggio on guitar · Diminished 7th hub · chord-scale theory.
Other arpeggios from A♯