The Boulder Philharmonic Orchestra has announced details of its 2021-22 season, which will begin in October with the first of several shortened, limited-capacity performances at Mountain View United Methodist Church in Boulder, followed by full-orchestra performances in 2022. The season-opening October 3 concert will feature two works by Haydn—the Symphony No. 1 and the Sinfonia concertante in B-flat Major—and Frank Martin’s Petite symphonie concertante, Op. 54. In February, the orchestra will perform Beethoven’s Symphony No. 7 on a program also featuring the world premiere of Billy Childs’s Violin Concerto, with Rachel Barton Pine as soloist. Music by living composers will include Anna Clyne’s Sound and Fury and Cindy McTee’s Circuits. Pianist Terrence Wilson will perform with the orchestra in Rachmaninoff’s Piano Concerto No. 3, and ukulele player Jake Shimabukuro and his trio will perform with the orchestra. Michael Butterman is the Boulder Philharmonic’s music director; Sara Parkinson is executive director.