Jazz

Countdown Progression (IIm7–♭II7–♭VImaj7–IV7) Chord Progression

IIm7-♭II7-♭VImaj7-♭VI7-IVmaj7. Coltrane's Countdown.

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Coltrane
Countdown
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Roman numerals

IIm7
♭II7
♭VImaj7
IV7

Roman numerals give each chord’s position relative to the key’s tonic, so the progression sounds the same in any key.

Chords by key

Key of C

Dm7 – Db7 – Abmaj7 – F7

Key of G

Am7 – G#7 – D#maj7 – C7

Key of D

Em7 – D#7 – A#maj7 – G7

Open in the editor and arrange it Generate MIDI patterns from this progression

II-V-I Progression
IIm7 – V7 – Imaj7
Minor II-V-I Progression
IIm7♭5 – V7 – Im7
Rhythm Changes (A section)
Imaj7 – VIm7 – IIm7 – V7
Autumn Leaves Progression
IIm7 – V7 – Imaj7 – IVmaj7 – VIIm7♭5 – IIIm7 – VIm7
Tritone Substitution
IIm7 – ♭II7 – Imaj7
Coltrane Changes
Imaj7 – ♭III7 – ♭VImaj7 – VII7 – IIImaj7 – V7
Modal Jazz Progression
Dm7 – Em7 – Dm7 – Em7
Fly Me to the Moon Progression
VIm7 – IIm7 – V7 – Imaj7 – IVmaj7 – IIIm7♭5 – VIm7

All Jazz chord progressions