Map it slowly
Locate F, C♭ on white keys and D♭, A♭ on black keys. Try each hand separately before playing together; choose a fingering that keeps the wrist relaxed, without stretching between notes.
Arpeggio · D♭7 · Piano
The D♭7 arpeggio is D♭ – F – A♭ – C♭ — chord tones 1 3 5 ♭7. D♭7 is the V chord — the engine of every cadence, and every bar of a blues; its sound is tense, pulling toward its resolution. Below, every D♭, F, A♭, C♭ 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 loops the arpeggio up and down one octave (switch Loop off for a single pass). 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
Locate F, C♭ on white keys and D♭, A♭ on black keys. Try each hand separately before playing together; choose a fingering that keeps the wrist relaxed, without stretching between notes.
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.
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 “tense, pulling toward its resolution”. Name the degrees as you play, so you can recognize the sound in another key rather than remembering only a shape.
Understand the sound
The third and flat seventh form a tritone. Hear those two notes first, then hear how they move when the dominant resolves.
Here the third is F, and degree ♭7 is C♭. Play D♭ in the bass and compare these voices individually before combining them.
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.
Separate the bass from the upper notes. If the low register sounds muddy, move the upper voices up an octave before adding more notes.
The black-key pitches in this collection are D♭, A♭. Use the groups of two and three black keys to orient yourself. Play D♭ and F with each hand separately before combining the hands.
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 guitar
Reference
| Chord tone | Note | Interval from D♭ |
|---|---|---|
| 1 | D♭ | unison (0 semitones) |
| 3 | F | major 3rd (4 semitones) |
| 5 | A♭ | perfect 5th (7 semitones) |
| ♭7 | C♭ | minor 7th (10 semitones) |
Goes with: D♭ Mixolydian (D♭ E♭ F G♭ A♭ B♭ C♭). Voicings: D♭7 voicings on piano.
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♭ – F – A♭ – C♭. As chord tones: 1 3 5 ♭7. Played one after another instead of together, that is the arpeggio.
D♭7 is the V chord — the engine of every cadence, and every bar of a blues. Its character is tense, pulling toward its resolution.
D♭ Mixolydian (D♭ E♭ F G♭ A♭ B♭ C♭) — the arpeggio is the skeleton of that scale, so practise them together.
Play D♭ – F – A♭ – C♭ ascending from D♭, 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 · Dominant 7th hub · chord-scale theory.
Other arpeggios from D♭