In a history so rich, there’s always more to know. Nothing illustrates the point better than this compilation of rare and previously unissued Motown recordings. It summons the work of artists, familiar and unfamiliar, committed to tape at the company’s headquarters at 2648 West Grand Boulevard, Detroit between 1961 and 1968 – arguably Motown’s golden era. ·          Among the familiar names here are Marvin Gaye, Smokey Robinson & the Miracles, Marv Johnson, the Temptations and Four Tops – mainstays whose unique talent, when coupled with that of the company’s in-house songwriters, musicians and producers, empowered Motown during the 20th Century, and continues to ensure its legacy in the 21st. Among the unfamilia