TANGLEWOOD

The Boston Symphony Orchestra opens its summer season at Tanglewood this weekend, with Christoph von Dohnányi leading an all-Beethoven program Friday; violinist Joshua Bell and bassist Edgar Meyer are the soloists tomorrow in the premiere of Meyer’s new Double Concerto; vocalist Bernadette Peters joins Keith Lockhart and the Pops on Sunday afternoon; and Sunday evening, the Tanglewood Music Center Orchestra gives its first performance of the summer. Lenox. 617-266-1200 or www.tanglewood.org

MONADNOCK MUSIC

The New Hampshire festival’s first season under the artistic leadership of Gil Rose opens Friday with an ambitious program at Peterborough Town House, featuring Copland’s “Appalachian Spring” alongside other works commissioned by Martha Graham. 800-868-9613, www.monadnockmusic.org

ASTON MAGNA

The early music festival concludes its 40th anniversary season with a program devoted to concertos by Bach and Vivaldi. 6 p.m., July 7. Daniel Arts Center at Bard College at Simon’s Rock, Great Barrington. 413-528-3595, www.astonmagna
.org