What is a good chord progression?

One that supports the melody you want to write. The progressions here are the patterns used most often in popular and electronic music, in your key, with Roman numerals so you can see the function rather than memorise the chords.

Are these generated by AI?

No. They come from a fixed table of well-established patterns, realised in the key you choose. The output is deterministic: the same key and filters always give the same progressions.

What do the Roman numerals mean?

The scale degree and quality. Uppercase is major, lowercase is minor, ° is diminished. i – VI – III – VII in A minor is Am – F – C – G, and the same numerals work in any key.

Will a progression give my track a specific mood?

Not on its own. The mood tag describes the harmonic character of the pattern, but tempo, timbre, arrangement and performance matter at least as much. Treat it as a starting point.

Free tool

Chord Progression Generator

Established progressions realised in your key, with Roman numerals and chord tones — deterministic theory, not a model guessing.

Runs entirely in your browser. Nothing is uploaded.

Key and filters

Root note

Mode

Character

Complexity

i – VI – III – VII

Am – F – C – G

Am F C G

Andalusian-adjacent minor loop used constantly in electronic music.

iAmA C EVIFF A CIIICC E GVIIGG B D

Character: melancholic · complexity 1 of 3

i – iv – v

Am – Dm – Em

Am Dm Em

All-minor motion; dark and static.

iAmA C EivDmD F AvEmE G B

Character: tense · complexity 1 of 3

i – VII – VI – VII

Am – G – F – G

Am G F G

Rocking minor vamp that never resolves upward.

iAmA C EVIIGG B DVIFF A CVIIGG B D

Character: driving · complexity 2 of 3

i – VI – VII

Am – F – G

Am F G

Three-chord minor lift.

iAmA C EVIFF A CVIIGG B D

Character: driving · complexity 1 of 3

i – III – VII – VI

Am – C – G – F

Am C G F

Descending minor loop with a wide harmonic field.

iAmA C EIIICC E GVIIGG B DVIFF A C

Character: dreamy · complexity 2 of 3

i – iiø – v – i

Am – Bdim – Em – Am

Am Bdim Em Am

Minor cadence using the half-diminished second degree.

iAmA C Eii°BdimB D FvEmE G BiAmA C E

Character: tense · complexity 3 of 3

These are triads. Adding sevenths, inversions or a moving bass line will change the feel far more than swapping the progression. To move one into another key, use the Chord Transposer.

Detail

How this works

Every progression here is a pattern of scale degrees applied to the diatonic chords of your key. i – VI – III – VII is one pattern; in A minor it becomes Am – F – C – G, and in F minor Fm – Db – Ab – Eb. The numerals are the reusable part.

Nothing is randomised or model-generated, which means you can come back to the same key and get the same list. The value is in seeing the function alongside the chords, so the pattern transfers to the next track instead of being copied once.

FAQ

Frequently asked questions

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