Showing my age
Stuff like Pallandin, Harmonium, early Genesis, Curved Air, Earth and Fire or Barclay James Harvest etc.
Pretty much anything with a Mellotron.
http://www.youtube.com/watch?v=w_Tf4nol1cg&feature=fvst
http://www.youtube.com/watch?v=0wWBgLl70FI