Complex sentence: In March 1961, at age 16, du Pré made her formal début, at Wigmore Hall, London, and she made her concerto début in 1962 at the Royal Festival Hall playing the Elgar Cello Concerto with the BBC Symphony Orchestra under Rudolf Schwarz.
Split into simpler sentences: In March 1961, at age 16, du Pré made her formal début, at Wigmore Hall, London. She made her concerto début in 1962 at the Royal Festival Hall playing the Elgar Cello Concerto with the BBC Symphony Orchestra under Rudolf Schwarz.