LONDON — A new production of “The Sound of Music” and an adaptation of Jane Austen’s “Pride and Prejudice” will play alongside “To Kill a Mockingbird” as part of the summer 2013 season at Regent’s Park Open Air Theater in London.A.d. Timothy Sheader will open the season at the 1,500-seat summer venue, with the director helming Christopher Sergel’s adaptation of Harper Lee’s “Mockingbird.” Designed by Jon Bausor, the play will run May 16-June 15. “Pride and Prejudice,” adapted by Simon Reade from the classic Brit novel, will run June 20-July 20. The venue will also present a production of Shakespeare play “The Winter’s Tale,” especially tailored for children and running June 29-July 20. Concluding the season, Rachel Kavanaugh will helm “Sound of Music” (July 25-Sept. 7), with choreography by Alistair David and designs by Peter McKintosh (“The 39 Steps”). The production marks the first Rodgers and Hammerstein show to be staged in the venue. The Regent’s Park theater has scored well in recent years, winning the Olivier for musical revival for three years in succession from 2010′s “Hello, Dolly” through “Into The Woods” — subsequently reconceived and remounted for its recent Gotham run as part of Shakespeare in the Park — and “Crazy for You,” which transferred to the West End. Further creative teams and casting for the 2013 season are yet to be announced.