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