In terms of chords and melody, 20 dollars 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.
20 dollars has sections analyzed in the following keys: D Major, and D Mixolydian. Click on the linked cheat sheets for popular chords, chord progressions, downloadable midi files and more!