Only ones I would have ranked as better songs.
79. By-Tor and the Snow Dog (30-40)
74. Something for Nothing (40-50)
65. A Passage to Bangkok (20-30)
61. Circumstances (30-40)
60. Cygnus X-1 (30-40)
I hope Cygnus X-1's ranking is not an indication of Book 2's, which may be my all time favorite!
Also pulling for Natural Science, Xanadu, and 2112 to make the top 5.