Robert Sherman, who hosted three long-running radio shows over more than a half-century on the New York classical music station WQXR-FM, died June 27 at his home in Ossining, NY. He was 90.

Mr. Sherman had been working behind the scenes at WQXR for more than a decade before he began hosting “Woody’s Children,” a weekly folk music program in 1969. A year later, he began “The Listening Room,” a daily program featuring established and emerging musicians. And in 1978, he started “Young Artists Showcase,” a weekly show for up-and-coming musicians. That program is still on the air.

Mr. Sherman also wrote music criticism for The New York Times, hosted a music show on public television station WNET, and collaborated with Victor Borge, the comic piano virtuoso, on two books. With his brother, Alexander, he compiled a book about their mother, Nadia Reisenberg, a concert pianist.