Thinking about it more, I realize it would be important to lay out a structure for each discussion. This structure could probably mimic some of the threads in the Production Talk section: the mix, the gear used, the theory/song structure, the sound design...maybe even the idea behind the song, though that's the one that will probably veer your discussion off topic the fastest. There might be just one or two things you want to analyze about some songs, whereas with others you might want to take apart every last aspect of it.
(BTW, I used the word "song" here where previously I followed the OP's lead and said "track" to mean the same thing. Somebody should start a taxonomy thread!)
