Sanctus - Libera

This is a song I first know of libera. when I first heard it on TV, I didn’t know it’s sung by boys and it’s Libera. I had long wanted to know who was singing. Sanctus has many versions. I tried a new version (in angel voices CD). Sanctus was sooo difficult to arrange for the piano!!! This will be continued to part2. Please enjoy=D ( Sorry for my poor English. Please remark my English if I had mistakes. )