Idina Menzel — Let It Go (Pop / Soundtrack, 2013)
The opening of Let It Go announces itself with a quietly inevitable chord progression: Fm, Db, Ab, Eb. Beginning on a minor tonic, the sequence carries a sense of cold, restrained tension before the two major chords — Ab and Eb — lift it toward something wider and more open. That shift from minor to relative major and beyond gives the progression its emotional arc, moving from inward isolation into a gathering sense of release. Each chord change feels unhurried and deliberate, making the sequence immediately satisfying to play on piano or guitar. Written for the animated film Frozen, the song became one of the defining power ballads of its era, capturing a theatrical sweep that sits comfortably between Broadway and mainstream pop.