Mr. Brightside by The Killers arrived in 2003 as one of indie rock's most immediately recognisable opening moments. The song launches on a C major chord before stepping up to F, then settling into the relative warmth of A minor, and returning to F — a cycle that feels both restless and inevitable. That shift from the brightness of C through the open resonance of F and into the minor creates a push-pull tension, a sense of something longing but unresolved, which suits the song's emotional urgency perfectly. The progression is satisfying to play because each chord change feels earned yet natural, flowing in a loop that seems to pull the listener forward almost before they realise it has begun.