In terms of chords and melody, Music of Four's 3D hand (BFB Intro) is more complex than the typical song, having above average scores in Chord Complexity, Melodic Complexity, Chord-Melody Tension and Chord Progression Novelty.
Music of Four's 3D hand (BFB Intro) has sections analyzed in the following keys: D♭ Major, and F Major. Click on the linked cheat sheets for popular chords, chord progressions, downloadable midi files and more!