The Orion String Quartet is a string quartet formed in 1987. A string quartet is a Musical ensemble of four String instruments &mdash usually two Violins a Viola and Cello &mdash or a piece It is the quartet-in-residence of The Chamber Music Society of Lincoln Center and New York's Mannes College of Music. The Chamber Music Society of Lincoln Center (CMS is an American organization dedicated to the performance and promotion of Chamber music. The City of New York The members are Todd and Daniel Phillips, brothers who alternate on first and second violin, violist Steven Tenenbom and cellist Timothy Eddy. The violin is a bowed String instrument with four strings usually tuned in Perfect fifths It is the smallest and highest-pitched member The violoncello (abbreviated to cello, or 'cello, plural cellos or celli —the c is tʃ Members of the quartet teach at the Curtis Institute of Music, Mannes, Juilliard and Queens College. The Curtis Institute of Music is a conservatory in Philadelphia Pennsylvania that offers courses of study leading to a performance Diploma Bachelor of Music The Juilliard School, located in New York City, is a world renowned Performing arts conservatory. Queens College, located in Flushing, Queens, New York City, is one of the senior Colleges of the City University of New York.