Let's image there is a Feedback volume 2 in the vault: the boys recorded other 12 songs, from 60s and 70s (they could appreciate new music from their favourite bands recorded in years when Rush are already famous).
If the list has been already done, give me the link.
If it's a new idea, here's my wishlist for that recording in the vault...
1. Led Zeppelin Immigrant song
2. Led Zeppelin Rock and roll
3. Yes Roundabout
4. Yes Siberian Khatru
5. Who Pinball wizard
6. Who Won't get fooled again
7. Led Zeppelin Rumble on
8. Yes Long distance runaround
9. Black sabbath Paranoid
10. Beatles Something
11. Jimi Hendrix All along the watchtower
12. Genesis The musical box