The Passion Narrative according to the Gospel of John [H/t Mike Aquilina] Paraclete Press is making a traditional Gregorian chant of the text of the Passion available for free at their website. It can also be downloaded (with an album of some fantastic chants) from iTunes or eMusic. [The page seems to work better in IE than Firefox.]
What a wonderful way to help meditate and pray as one enters the Triduum.
Incidentally, growing up, there were two pieces of music that were always associated with Christian holy days in our house. On Christmas Day, my dad would play an old scratchy LP of Sir Neville Mariner conducting the London Philharmonic (I forget which orchestra) with selections from Handel's Messiah. And on Good Friday, we'd listen to the Passion according to St. Matthew by Bach. I still try and listen to the entire Matthaüspassion at some point during Lent, if not on Good Friday itself ...
And he wondered why I ended up Christian? :)