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