The first few things that came to mind were:
1) The bass riff in "Johnny The Fox" by Thin Lizzy.
2) The dueling guitars in the intro to "Warrior" by Wishbone Ash
3) The synthesizer riff in "Round and Round" by The Strawbs.
4) "Babe I'm Gonna Leave You" by Led Zeppelin.
Looks like I've got some homework to do............
1) The bass riff in "Johnny The Fox" by Thin Lizzy.
2) The dueling guitars in the intro to "Warrior" by Wishbone Ash
3) The synthesizer riff in "Round and Round" by The Strawbs.
4) "Babe I'm Gonna Leave You" by Led Zeppelin.
Looks like I've got some homework to do............