Performances throughout North and South America, Asia, Europe, and Canada. Member, American Symphony Orchestra, Philharmonia Virtuosi. Performances with New York Philharmonic, Orpheus Chamber Orchestra, Bang On A Can, Lincoln Center Community Concerts. Founding member, Ethel, Rossertti Quartet, Roerich Quartet, Andreas Trio. Recordings on Deutsche Grammophon, Koch International, Pro Arte/Fanfare, Albany. Numerous premieres of contemporary solo and chamber works. Former faculty, Alfred University Summer Chamber Music Institute, 1984-1994. Faculty, Mannes Extension Division since 1995; Mannes Preparatory Division since 2003.