"Nights in White Satin" by the Moody Blues

Here's a great song that doesn't exactly fit into the pop scene. It's a blend of classical music, exotic melodies, and British rock in the reverse order of the usual. The Beatles also had these ingredients, but the Moodies make them more melodramatic.

"Nights in White Satin" is the grand finale of their Days of Future Passed album, another 1967 album with great album art. Besides the album art, this album also followed the trend of being a concept album, with the first song about morning and the last song about night. Instead of commercial interludes that the Who had on their Sell Out album, Days of Future Passed features full symphony orchestra interludes. Finally, I believe that this album is one of the first progressive rock albums that dominated FM radio in the early 1970s.