Harmony tool
Chord Progression Generator
Explore familiar diatonic progression shapes in any major key, or build a genuinely randomized four-chord loop. Labels always describe the progression actually on screen.
CI · C–E–GGV · G–B–DAmvi · A–C–EFIV · F–A–C
Pop anthem · C majorNo sharps or flatsScale: C · D · E · F · G · A · BRoman numerals: I – V – vi – IV