Amazon.com's review of "Days of Future Passed": The Moody Blues' second album was also their first of what would be a succession of "concept" albums. Inspired by the Beatles' Sgt. Pepper and utilizing the London Festival Orchestra primarily for epic instrumental interludes between songs, Days of Future Passed moved the Birmingham band away from its early R&B roots into uncharted rock territory, making them the early pioneers of both classical and progressive rock.
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