I got a precious and rare gift from a friend, ngkaiki,on youtube — a Vienna Boys' choir concert recorded on November 28, 1980; which totally fixed the memory leak in my brain. It's absolutely nothing but a miracle! ngkaiki got this tape from a woman who's like my age, lives in Taichung, and gave away the duplicate to ngkaiki's WSK fan friend a few years ago. What a story! These old tapes are merely like junk to others but they're like a great feast to me.