LENOX - Tanglewood is large enough that it can hold a concurrent mini-festival mostly without disturbing the rhythms of the Boston Symphony Orchestra and its summertime audiences. This weekend, tucked away in the Tanglewood Theater and Ozawa Hall, ears were trained on music by living composers - and lots of it. Since Friday afternoon, the Tanglewood Music Center has been hosting its annual new-music bash, the Festival of Contemporary Music.
Last summer’s festival was an anomaly in its laser-like focus on the music of a single composer, Elliott Carter, and the previous year it grappled with a generational theme by highlighting composers born in 1938. This year, under the direction of Augusta Read Thomas, it is turning back to its wide-angle approach with works by 31 composers from 13 countries. In a gesture overdue at FCM, Thomas has also sought out younger composers, with seven of the 31 described as “near or under’’ 30.