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