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What was Billy Taylor up to during his mid career?
In 1952 Billy Taylor composed one of his most famous tunes, I Wish I Knew How It Would Feel to Be Free.
Why was I Wish I Knew How It Would Feel to Be Free by Billy Taylor a popular song?
Nina Simone covered the song in her 1967 album Silk & Soul. The instrumental version is widely known in the UK, used for BBC Television's long-running Film... program.

Question: Did he do anything other than compose music?
Self-contained rewrite: Did Billy Taylor do anything other than compose music?