	As the eldest son of Moshe, Horowitz succeeded his father as the Bostoner Rebbe of New York. He later founded the Bostoner community in Ramat Beit Shemesh, Israel, where he resided. He composed contemporary Chasidic music; many of his compositions were performed by leading Jewish music artists of the day. Andy Statman credits him with being a major influence in his musical career, having performed several of the Horowitz's compositions on his recordings and in concert.