style="overflow: hidden; color: #000000; background-color: #ffffff; text-align: left; text-decoration: none; border: medium none;">In truth this revealing exploration of British jazz covers a near quarter-century, rather than the advertised 15 years. The Dirty Bopper of the title refers to the alto saxophonist Bruce Turner, who in 1953 joined Humphrey Lyttelton’s traditional jazz band, only to be confronted at a Birmingham gig by a banner unfurled by fans scenting a sell-out to modernist tendencies: “Go Home You Dirty Bopper”.