Dr. Philip Blosser, on his blog, is carrying the full text of an article written by Fr. Kenneth Baker, SJ on the Tridentine, with permission to reprint from Latin Mass Magazine (Fall 2007). Fr. Baker is the Managing Editor of Homiletic and Pastoral Review (HPR) a very dignified periodical aimed at priests but read by many lay people including myself.
I highly recommend reading this article if you want to understand more about the motu proprio and it's affect on the future of Liturgy.
h/t: Fr. Z