Free Chord Progression Generator

A chord progression is a series of chords played in sequence that forms the harmonic foundation of a song. Most popular songs use 3-8 chords arranged in specific patterns. For example, the I-V-vi-IV progression (C-G-Am-F in the key of C) is used in hundreds of hit songs including 'Let It Be' and 'No Woman No Cry'.

Roman numerals represent chord positions within a key. Uppercase (I, IV, V) indicates major chords, lowercase (ii, iii, vi) indicates minor chords, and the degree symbol (vii°) indicates diminished chords. This system lets you understand progressions in any key - I-V-vi-IV works the same whether you're in C major (C-G-Am-F) or G major (G-D-Em-C).

Major mode produces bright, happy-sounding progressions, while Minor mode creates darker, more emotional ones. Each mode has its own set of 7 diatonic chords with different qualities. Many famous songs mix both - try switching between modes with the same preset to hear the dramatic difference.

The key determines the pitch range of your progression. For vocals, choose a key that keeps the melody comfortable for your voice. For instruments, consider their natural range. Our tool lets you try the same progression in all 12 keys instantly - click different keys while your progression plays to find the perfect match.

Absolutely! Chord progressions cannot be copyrighted. You're free to use any progression from our presets or custom-built ones in your original compositions, recordings, or performances without any licensing concerns. The melody and lyrics you create over the chords are what make your music unique.

While the harmonic relationship between chords stays the same, different keys have different pitch ranges and tonal qualities. Lower keys (like C or D) sound warmer and fuller, while higher keys (like A or B) sound brighter and more energetic. The key also affects how instruments resonate - guitarists often prefer keys with open string notes.