I really like the pieces commissioned by the Swiss conductor Paul Sacher during the '30s by Bartok (Music for Strings, Percussion & Celesta; Divertimento for Strings). They are some of the best chamber works written at that time. For me, they reflect the turbulence and uncertainty of the time, Europe on the brink of war and destruction of everything. There is a deep uncertainty and unease in these works, particularly the 3rd movt. of the Music (you just sense something horrible is about to happen, before that devastating climax) & the 2nd movt. of the Divertimento, where the music is on the brink of totally disintegrating. No wonder the former was used by Kubrick in The Shining. The upbeat finales of both works attest, however, that Bartok was an optimist. Here, the band plays together, suggesting that if humanity combines, it can overcome all of these terrible odds and setbacks.
Sacher seemed to draw out the best from composers in his many commissions. Not only did he commission a significant concerto from Martinu (forget exactly which one), but also the bittersweet Metamorphosen by Richard Strauss, a work which actually looks back on the devastation wrought by WWII.
I am to hear the Bartok Music & the Strauss performed by the Australian Chamber Orchestra here in Sydney in August. Can't wait!