In terms of chords and melody, Doyoubi No Koibito is significantly more complex than the typical song, having above average scores in Chord Complexity, Melodic Complexity, Chord-Melody Tension, Chord Progression Novelty and Chord-Bass Melody.
Doyoubi No Koibito has sections analyzed in the following keys: A Major, and F♯ Major. Click on the linked cheat sheets for popular chords, chord progressions, downloadable midi files and more!