Complex sentence: The opera received a new performances at the Brooklyn Academy of Music in December 2003, and the Curtis Institute of Music, through its Curtis Opera Theatre and Curtis Symphony Orchestra, gave a performance in Philadelphia in February 2005.
Split into simpler sentences: The opera received a new production at the Brooklyn Academy of Music in December 2003. The Curtis Institute of Music, through its Curtis Opera Theatre and Curtis Symphony Orchestra, gave a performance in Philadelphia in February 2005.