From a musical perspective, opening nights of orchestral seasons are often fairly formulaic affairs: one part star soloist, one part fizzy standard repertoire, then OK let’s head to dinner. At last night’s opener in Symphony Hall the Boston Symphony Orchestra tried admirably to tweak the annual routine, not so much by altering the template as by adding to it.
There was still a well-known soloist (pianist Evgeny Kissin) and familiar masterworks (including Debussy’s “La Mer’’), but the BSO also seized the moment to honor one of its own, Ann Hobson Pilot, the former principal harpist who retired this summer after a distinguished four-decade career with the orchestra. The honoring was also done in the best possible way: by the commissioning of a new work. Pilot chose John Williams as the composer to pen her tribute, and the new work, “On Willows and Birches,’’ was unveiled last night. It was the first time a BSO opener featured a premiere since 1980, when Seiji Ozawa led Bernstein’s “Divertimento.’’