In terms of chords and melody, Trouble is a Friend 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.
Trouble is a Friend has sections analyzed in the following keys: C Minor, and E♭ Major. Click on the linked cheat sheets for popular chords, chord progressions, downloadable midi files and more!