Nudging its recent archives open a little further, the Boston Symphony Orchestra has released a download-only version of “On Willows and Birches,’’ a concerto by John Williams for the orchestra’s former principal harpist, Ann Hobson Pilot. The recording was made at Symphony Hall on Oct. 3, 2009, not long after Pilot and the orchestra premiered the 16-minute piece on opening night of the 2009-10 season. (It was also played at Carnegie Hall.) Former assistant conductor Shi-Yeon Sung leads the BSO in the recording, though James Levine had conducted the premiere.
The concerto was a gift to Pilot and a recognition of both the significance and length of her career: She was the first African-American principal player in a major orchestra, and her retirement after the 2009 Tanglewood season capped a 40-year stint with the BSO. While the orchestra has been releasing recordings in both download and CD formats on its own BSO Classics label since 2009, the Williams is one of a handful of works released only in digital form.
