Zimmerman refused to play encore? Unheard of! Oh, how he shortchanged you poor Bostonian audience! He invariably played lots and lots of encores in NYC!
Wait a minute, this was the first time you saw LL? Wasn't your first time (pun intended) in Philly??? And where is that door leading to backstage?? (... and you are not even a Carnegie Hall Fellow!)
The only time I went backstage was to see Kissin. Don't remember exactly how but I had to walk up a flight of stairs to see him. I asked him about 顾圣婴, and he said, "Oh, that poor girl who died in Cultural Revolution ...." He was really quite sweet.