Matt Monro died in 1985 from cancer aged 53. He had many hits, including Born Free, From Russia with Love, Portrait of My Love and many more. Check out www.45-rpm.org.uk/dirm/mattm/htm for more information and more hits. One of my favourite 'oldie' artists!
Not sure about that Spellmaster, however the jury is still out for me.
I think in this context sixties is an adjective, rather than a possessive pronoun (is that right?). Think "blues singer" or even "blond woman". But I'm also aware of "Stones' drummer" or "rock music's image". Sorry for sidetracking here!