It started as all playlists do, an occasion that justified music for entertainment. In this case, it was a couples weekend getaway back in February. Super Dave proposed that he and I provide the tunes and we started a Spotify playlist: three songs at a time, no song repeats, no artist repeats. Dave would add his three, then text me that it was my turn. I would then add my three text him back. This cycle repeated until three hundred songs were compiled, and we drove off to Mammoth with our wives. A funny thing happened, though, it turned out we both enjoyed the challenge of trying to surprise or outdo the other so much that we continued building the playlist. We made a new rule of just three songs each a day and still no artist repeats. Soon, we came up with amendments to allow duets (The Emmylou Exception), multiple songs by the same band if said band had multiple lead singers (The Beatles Exception), or if there was a lead singer replacement that changed the artistic direction of ...