This is awesome!! I love it. I have one question regarding the data in the Implication table (FWIW I don't fully understand the Implication column, 73% for BOABH and Zero?) Did you control for the frequency of the songs? For example, it's more likely that commonly played songs will appear in the same show. If Gin and Hood are both played in 50% of shows, we'd expect to see them together in 25% of shows (I think). If they appeared together in 10% or 40%, that would be . . . interesting to nerdy people such as myself.

57% of the shows contained a song that was only played in 1 or 2 shows throughout all 7 years.

That makes my head spin just thinking about it. Every other show has a unique rarity/bust-out.