One of the fastest-selling rock albums in the U.S. nowadays is a three-LP set by a British group, Emerson, Lake & Palmer. It includes mod versions of Aaron Copland's Hoedown, a movement from Alberto Ginastera's First Piano Concerto and even Sir Charles Parry's great old Anglican choral song Jerusalem. Also rising on the charts is an LP by a Dutch group called Focus that sounds at times like a combo of English madrigalists. In Detroit this week, English Rock Star Rick Wakeman begins a month-long U.S. tour featuring some unusual sidemen: Classical Conductor David Measham and a 60-member orchestra and choir.
Can...