sentences:  Ms. Dreyfus has concertized extensively in the United States, Canada, Europe, Asia, and South America.Some of her musical collaborations have been with Musicians From Marlboro, New York Philomusica, Theater Chamber Players of the Kennedy Center, the New York Philharmonic, and the Orpheus Chamber Orchestra.She has performed in recital with Yehudi Menuhin at Carnegie Hall and has also collaborated with such artists as Rudolf Serkin; Alexander Schneider; Leon Fleisher; Chick Corea; and her husband, Glenn Dicterow.