Act One, debut album of British prog-rockers, Beggar’s Opera, is a fun, timeless work in an early British post-psychedelic style. Most notable among the instrumentation is Alan Park’s fantastical keyboard and organ playing, at times breaking into classical pieces (similar to contemporaries Emerson, Lake & Palmer), from Grieg’s famous Peer Gynt suite (best known for its “In the Hall of the Mountain King,”) to Mozart’s “Rondo allo Turka,” suggesting that Park was, at the very least, well-trained.

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