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