Orchestra of the S.E.M. Ensemble – Compositions of Shifting Identity

From the Times:

The composer and conductor Petr Kotik presided over a varied program of rugged, demanding contemporary works at Alice Tully Hall on Wednesday evening. And perhaps inadvertently, he also demonstrated how porous new-music groups are these days. The Orchestra of the S.E.M. Ensemble, an expansion of a chamber group Mr. Kotik founded in 1970, shared the bill with the Ostravska Banda, which he started in 2005. But the rosters in the program book showed that nearly everyone in the S.E.M. group was also in the Ostravska Banda, which is slightly larger.