Map it slowly
Find D on string 5 at fret 5. Play string 5, fret 5; string 5, fret 8; string 4, fret 6; string 4, fret 9; string 3, fret 7. Use a relaxed position and release pressure between repetitions. String 1 is high E.
Arpeggio · D°7 · Guitar
D°7 arpeggio on guitar
The D°7 arpeggio is D – F – A♭ – C♭ — chord tones 1 ♭3 ♭5 𝄫7. D°7 is passing chords between diatonic chords, and as a 7♭9 without its root; its sound is symmetrical, restless. Below, every D, F, A♭, C♭ on the fretboard is marked, with the root in gold. Press play to hear a one-octave arpeggio, or tap any note.
Visualizer
D°7 on the fretboard.
Guitar · standard tuning
Piano
RootChord toneBeing played
Tempo100 bpm
Show
Sound
Play loops the arpeggio up and down one octave (switch Loop off for a single pass) in the position starting at fret 5. 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.
Your next 10 minutes
Make D Diminished 7th part of your playing
Make a short phrase
Play D – F – A♭ – C♭ in quarter notes at 60 bpm. Repeat starting from F, wrapping back to D. Do not speed up until every attack is even.
Hear it in context
Alternate F and C♭ above a sustained D. These are degree ♭3 and 𝄫7. End a four-bar phrase on either one instead of always returning to the root.
Listen for this: D°7 has the colour “symmetrical, restless”. Name the degrees as you play, so you can recognize the sound in another key rather than remembering only a shape.
Understand the sound
D°7: from a pattern to a musical choice
What gives D°7 its identity?
Successive chord tones are separated by minor thirds. The seventh is a diminished seventh, not a major sixth in the chord’s theoretical spelling, even when they share a piano key.
Here the third is F, and degree 𝄫7 is C♭. Play D in the bass and compare these voices individually before combining them.
Turn the arpeggio into a melody
Try F – A♭ – C♭ – D as quarter notes, then repeat the first note and omit the last. The second phrase uses the same harmony with a different shape.
Sound the strings separately before playing them together. If a note is muted, adjust the finger angle instead of squeezing harder.
Your guitar checkpoint
Start with D on string 5, fret 5. The next note F is on string 5, fret 8. Name both notes aloud before playing, then find the same two pitches in another octave.
Before moving on, close the diagram and name the notes: D · F · A♭ · C♭. Then play a two-bar phrase from memory and leave two bars of silence.
On piano
D°7 on the keyboard.
Reference
D°7 — chord tones & intervals.
| Chord tone | Note | Interval from D |
|---|---|---|
| 1 | D | unison (0 semitones) |
| ♭3 | F | minor 3rd (3 semitones) |
| ♭5 | A♭ | diminished 5th (6 semitones) |
| 𝄫7 | C♭ | diminished 7th (9 semitones) |
Goes with: D Diminished (whole–half) (D E F G A♭ B♭ B D♭). Voicings: D°7 voicings on guitar.
Take it to the bandstand.Practice Radio streams endless changes to play the D°7 arpeggio over through all twelve keys, with the chord and scale shown live — plus ear-training and call & response modes.
▶ Open Practice RadioCommon questions
D°7 arpeggio FAQ.
What notes are in a D°7 arpeggio?
D – F – A♭ – C♭. As chord tones: 1 ♭3 ♭5 𝄫7. Played one after another instead of together, that is the arpeggio.
What is a D°7 chord used for?
D°7 is passing chords between diatonic chords, and as a 7♭9 without its root. Its character is symmetrical, restless.
Which scale goes with D°7?
D Dim. W–H (D E F G A♭ B♭ B D♭) — the arpeggio is the skeleton of that scale, so practise them together.
How do I practise the D°7 arpeggio on guitar?
Start on the root D on the A string at fret 5 and play A-string fret 5, A-string fret 8, D-string fret 6, D-string fret 9, G-string fret 7. Then play it descending, then in eighth notes with a metronome, then use it in a short phrase over a suitable chord.
Keep going
Diminished 7th arpeggio in every other key.
Same arpeggio on piano · Diminished 7th hub · chord-scale theory.
Other arpeggios from D