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