Robert S. Cohen has written music for orchestra, chamber ensemble, dance and theatre. His music has been performed throughout the United States and Europe.

A number of his works received world premiere's in 2005 including Edison Invents with a libretto by Herschel Garfein, commissioned by the Westfield Symphony Orchestra and Geraldine R. Dodge Foundation; a ballet: String Quartet #2 (A Day in the Life) (the New Jersey Music Society's Ensemble America and the Freespace Dance Company), and his a cappella choral work Sprig of Lilac (Connecticut Choral Artists).

Bob co-authored the book and composed the score for the musical Suburb, (York Theatre Company) which earned 2001 nominations for Best Musical from the Outer Critic's Circle, the Drama League, and the Lucille Lortel Awards. Suburb was also the recipient of the 2000 American Academy of Arts and Letters' Richard Rodgers Award. His musicals have also been performed at the Second Stage Theater, New Dramatists, the Westbeth Theater, and the Joyce Theater in NYC.

Bob has served as resident composer for the National Shakespeare Company, the New Jersey Shakespeare Festival, and the Manitoba Theater Center. In addition, he has served as Project Manager and Conductor of the Bergen County L.E.A.P Orchestra (1978) and was an Assistant Professor of Music at Drew University from 1972-77.

He received a B.A in Music from Brown University where he studied composition with Ron Nelson; an M.A from Queens College where he studied composition with Hugo Weisgall and served as an adjunct lecturer and Assistant Director of the Queens College Electronic Music Studio; and was enrolled in the PhD program in composition at Columbia University where he studied with Vladimir Ussachevsky and served as an adjunct lecturer. He is an Adjunct Professor of Music at Montclair State University and is a member of the Dramatists Guild, ASCAP and the American Music Center. He lives in Montclair, NJ with his wife Maryann and three cats: Fred, Ginger and Trixie.