Guitar arpeggio
A Diminished 7 Guitar Arpeggio
A Diminished 7 is a four-note seventh-chord arpeggio built from A, C, Eb, and Gb. It is also commonly called A Fully Diminished 7. Use it to study chord tones, interval formulas, and guitar fretboard positions.
- Chord tones
- ACEbGb
- Formula
- 1 b3 b5 bb7
- Semitones
- 0 3 6 9
- Chord symbols
- Adim7
- Also called
- A Fully Diminished 7
How to read this arpeggio
The chord tones are shown as pitch classes first. In the fretboard tool, square markers represent A root notes, while circular markers represent the remaining tones in the arpeggio.
Use the interactive fretboard to locate the A root notes and connect the remaining diminished 7 chord tones across standard tuning.
This same arpeggio shape is also commonly called A Fully Diminished 7.
Fretboard diagram
Open this arpeggio in the fretboard tool
Start with A Diminished 7 loaded, then adjust tuning, labels, colors, fret count, and orientation.
Open in interactive fretboard