if i had to choose one, it would be "Babe I’m Gonna Leave You" from Zed Zepplin 1, 15 ips, 1/4" master dub, followed right behind by "You Shook Me" and "Dazed and Confused" also on that same ’reel 1" of that same master dub.
played at warp 9 on the Studer on my big rig it takes no prisoners.
Rock n’ Roll was never the same after side 1 of that album. Rock n' Roll may not have ever been as good again as it was after side 1 of that album. and it just happens to be a great recording too.