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