The song is in the key of F major. The chord progression is F maj – C maj – D min – B maj throughout the verse with various ornamental embellishments diatonic to the key of F major, including the bridge which cycles between the I (F major), V (C major), IV (B major), and V chord in F Major. The refrain towards the end hangs on the vi (D minor) – IV (B major) before returning to the recurring progression for the last verse.