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Chord Progression Builder

ii–♭II7–I: Tritone Substitute Cadence

Dm7–Db7–Cmaj7 is a shortcut to jazz sophistication because Db7 replaces G7 by sharing the same tritone (B and F). Your ear still hears dominant pull, but the bass drops chromatically, which makes the resolution feel smoother and more modern. The best part is the voice leading: the 3rd and 7th of Db7 want to resolve inward by half-step to the 3rd and 7th of Cmaj7, so even simple shells sound intentional. Use this as a turnaround in standards, a bridge into a chorus, or a tag ending after a melody. On piano, comp with guide tones first, then add the 9th on Dm7 or a tight upper structure on Db7 for color. On guitar, keep the top note steady and let the inner voices slide; that moving inner line is where the jazz lives.

Key
C major
Tempo
144 BPM
Groove
swing
Open in BuilderMore swing

Play it on guitar

Start slow, keep your right hand steady, and aim for clean changes on the downbeats. Once it’s comfortable, add a groove and increase tempo.

Capo suggestion: try capo 0 and play in C shapes for open chords.

Chords: Dm7 – Db7 – Cmaj7 – Cmaj7

Roman numerals & theory

Roman numerals describe the chord’s function relative to the key. This helps you transpose the “shape” to any key without memorizing new chord names.

In C major: IImaj7–Imaj7–Imaj7

Variations (keep the progression, change the feel)

  • • Add 7ths for color (try maj7 on I, m7 on vi, and V7 before resolving).
  • • Use a sus4 resolve on the V chord (e.g. Gsus4 → G) to create tension and release.
  • • Change the rhythm instead of the chords: try anticipations (hit the next chord on the “and” of 4).
  • • Arpeggiate the top notes to create a hook while the harmony stays the same.
  • • Borrow a darker chord for contrast (in a major key, try iv for one bar before returning).

Related

More swingMore in C majorLearn guitar progressions

FAQ

What chords are in ii–♭II7–I: Tritone Substitute Cadence?
In C major, a common spelling is: Dm7 – Db7 – Cmaj7 – Cmaj7. Use the “Open in Builder” button to hear it with a groove and adjust tempo.
What key is this progression in?
This page’s example is in C major. You can transpose the idea to other keys (often with a capo) while keeping the same progression shape.
How do I play this progression on guitar?
Start with clean chord changes at a slow BPM. For open chords, try capo 0 and play in C shapes, then increase tempo once the groove feels steady.
How can I make it sound more interesting?
Keep the progression but add movement: sus4 resolves, 7ths, or a stronger V7 before returning to I. Rhythm and dynamics usually create the biggest “upgrade” on guitar.
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Your Progression

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Drums: 75%
Humanize
Sustain: 95%
BPM: 120
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Key: C major
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