After careful consideration, my favorite moments:
1. The incredible nuclear detonation of 3 violins at the end of "Supper's Ready" (from the lyric "a brand new tune" to the end)
2. The tidal wave of the "Can-Utility and the Coastliners" solo
3. The ENDING solo of "Watcher of the Skies"
4. "Heart of the Sunrise"
5. "Question"
6. The ending fadeout of "Three Friends"
7. "The Voyage"
8. The end of Side Two of "Tales" featuring the huge 8-voice choir
9. "Catherine Howard"
10. "Space Oddity"
Special Honourable Mention to the little bit of 3-violins in "America" on the Atlantic sampler record that introduced Rick to the world as Yes' new keyboardist before "Fragile" was released and demonstrated that they were becoming an incredible force in the keyboard realm. Let the games begin, Mr. Emerson!