The Ensemble Donald Berman keyboards Anne Black viola/violin Yu-Hui Chang composer, co-artistic director Michael Curry cello Ian Greitzer clarinets Diane Heffner clarinets/sax Sue-Ellen Hershman- Tcherepnin flutes, co-artistic director Katherine V. Matasy clarinets/sax/accordion Robert Schulz percussion Cyrus Stevens violin Scott Wheeler conductor   Ian Greitzer, clarinets   Ian Greitzer is Principal Clarinetist with the Boston Pops Esplanade Orchestra, the Rhode Island Philharmonic, the Boston Classical Orchestra and the Boston Modern Orchestra Project. He is also a member of the Boston Conservatory Chamber Players, Boston Musica Viva, the Pro Arte Chamber Orchestra and the Boston Conservatory Faculty Wind Quintet. He has been a member of Dinosaur Annex Music Ensemble since 1979. Other performances include the Boston Symphony Orchestra, Boston Lyric Opera, Boston Ballet and the Pittsburgh Symphony. Mr. Greitzer has recorded for the Philips, Koch International, CRI and Northeastern labels. He currently serves on the faculties of the Boston Conservatory and the Boston University College of Fine Arts.