Chord Progression Generator
Stuck on what chords come next? Generate a tried-and-true progression in any key, then play it on your instrument.
C · G · Am · F (I — V — vi — IV)
The same seed always gives the same progression — tweak the key and mode to make it yours.
Roman numerals, decoded
Uppercase (I, IV, V) = major chords. Lowercase (ii, iii, vi) = minor. The most popular progression in Western pop is I–V–vi–IV — thousands of songs share it. Knowing the numerals lets you transpose any song to any key instantly.