No youtube links from me as things tend to vanish, as the gaping holes in the wasteland that is my youtube favourites list will attest, but my additions to some already fine offerings:
1952 Vincent Black Lightning - Richard Thompson
Dimming of the day - Richard Thompson
Nothing More - Sandy Denny
Hallowed be thy name - Iron Maiden
Some Journey - Suzanne Vega (most people prefer the song that follows it on the album)
This womans work - Kate Bush
and not "songs" as they lack lyrics:
Dr Who Theme (original) - composed Ron Grainer / realized and recorded by Delia Derbyshire, appearing as "the BBC Radiophonic Workshop"
Music for 18 musicians Sections V and VII - composed Steve Reich
Logos part I - Tangerine Dream