Procol Harum is the closest to an LN we've had -- but just barely. VHM.
While obviously LN, it's not because of 10@10. This is only its second appearance in recorded
10@10 history.
I very much enjoy most of Procol Harum's catalogue, and it bugs me that the only songs that
have appeared on 10@10 are
Whiter Shade of Pale on one end and the live version of
Conquistador on the other. In between is a lot of good material, with many FM radio "hits."