Joao Gilberto - "I Wish You Love (Que reste-t-il de nos amours?) (Gloria...

I think that the big hit, was by Nat King Cole, but most if not all of his videos are blocked from sharing and keeping his music alive on YouTube.  I wonder if it is good to let them be posted shared and kept alive?  It appears that allowing some, if not all, to be shared is good for publicity, but, who knows?