Song lines

I have been invited to hear the Winchester Troper, "the earliest know manuscript of English music and apparently the oldest record of polyphony in Europe...written circa 1000 AD" being sung on 29 September in its original setting, Winchester Cathederal, for the first time in a thousand years. I can't make it, because I will be at Woods Hole, but anyone who goes, please let me know what it was like!