Chalk up another mod for frequent contributor JB: According to AllMusic, the Nice “bridged the gap between mid-’60s psychedelic pop and 70s art rock, laying the groundwork for the entire progressive rock explosion in the process. It was with the Nice that Keith Emerson began his transformation from an unknown musician into an international rock star with Emerson, Lake & Palmer.” Over time, the band pulled excerpts from an eclectic range of composers including Sibelius, Janacek, Brubeck, Tchaikovsky, Bernstein, and more, including this 1969 tune featuring a J. S. Bach melody.
At 2:28, there’s a short bridge based on a quote from the Brandenburg Concerto #3; at 2:46, after a pause, the tune modulates up a whole step.