In terms of chords and melody, Let It Go is more complex than the typical song, having above average scores in Chord Complexity, Melodic Complexity, Chord-Melody Tension and Chord Progression Novelty.
Let It Go has sections analyzed in the following keys: F Minor, E♭ Mixolydian, A♭ Major, and C♯ Mixolydian. Click on the linked cheat sheets for popular chords, chord progressions, downloadable midi files and more!