A thesis borne out of the belief that music is a language, in every sense of the word! I used chords as a fundamental unit of composition, and built a 1-degree Markov chain out of the chords from the Beatles' catalog. Then, I took the entropy, to see if it would measure the notion of "predictability" or "chaos" as we might think of it in music. Completed in 2009 for my undergraduate degree in Mathematics at Reed College. Read the full text here: https://ginacollecchia.github.io/pdf/TheEntropyOfMusicalClassification.pdf