A few days ago I posted the first 20 in my Top 40 Albums of 2012 (check it out here).  The first half of the list is always easier to compile than the final 20.  With this, the top half of the list, I find myself swapping albums from one spot to the next, trying to refine my list to the perfect order. Of course, this “perfect order” is never truly found. On one day I’d much rather listen to my number 17 than my number 5 and vice versa. I can promise you, all of these albums are fantastic.  In order to come up with a definitive order, I took into account the overall significance of an album, not just which has the best collection of songs, but which is the perfect album – the themes, the order of the songs, the cultural significance. Within those parameters…