Rush - Cygnus X-1 Books I & II

Source

"Book I: The Voyage" --- the last track on 1977's A Farewell to Kings (10:15).
"Book II: Hemispheres" --- the opening track of 1978's Hemispheres (18:08).
• I. Prelude - (10:15)
• II. Apollo (Bringer of Wisdom) – (14:43)
• III. Dionysus (Bringer of Love) – (17:13)
• IV. Armageddon (The Battle of Heart and Mind) – (19:19)
• V. Cygnus (Bringer of Balance) - (22:14)
• VI. The Sphere (A Kind of Dream) – (27:15)