In terms of chords and melody, Angel Island Act 1 has complexity on par with the typical song, having near-average scores in Melodic Complexity and Chord-Melody Tension and below-average scores in Chord Complexity, Chord Progression Novelty and Chord-Bass Melody.
Angel Island Act 1 has sections analyzed in the following keys: C Mixolydian, and C Major. Click on the linked cheat sheets for popular chords, chord progressions, downloadable midi files and more!