'Orb, I don't know 3 of the 5 you name there.. old ones are hard to find on youtube and we don't have all albums. I love 'One For The Vine' and 'Firth of Frith' too though. '

The Musical Box linky
Fountain of Salmacis
linky

Both from Nursery Cryme.

I couldn't (though I'm not surprised, because it's only a fairly short track from Lamb Lies Down...) find Anyway on Youtube quickly.