Metallica's fine but not for relaxing

No, never heard of George Winston.
Mertens is a belgian composer, contemporary music (piano, string quartets, etc) - released most works in the 90s. I think the only countries who know who he is, apart from Belgium, are Portugal and Spain, dunno why
I've seen him live 3 times now, soooo good (and met him, after sneaking backstage - oh my younger years

)