They lurk in dimly lit rooms, their voices are only heard over the talkback, and they do not play note, yet their names are on every CD in our collection. Each day this week, presenter Humphrey Carpenter investigates the mysterious world of the record producer.
Music includes pianist Glenn Gould playing Bach, the Corydon Singers performing Britten, and, at about 6.45, Charles Dutoit conducting the Montreal Symphony Orchestra in Prokofiev's Classical Symphony.
