DEC. 5 Unity Concerts presents Horacio Gutierrez, pianist.

DEC. 18 Unity Concerts presents the Canadian Brass, round two.

The concert, one in a series sponsored by Unity Concerts, begins at 3:30 in Montclair High School, Park and Chestnut Streets.

Presented by Unity Concerts.

Surprisingly, there are still tickets available for Mr. Hampton's Montclair appearance, which is being sponsored by Unity Concerts.

Next Sunday afternoon, Mr. Neidich will be at Montclair High School for a performance sponsored by Unity Concerts.

Unity Concerts of New Jersey, Community Auditorium, Park and Chestnut Streets, Montclair.

On Saturday, Unity Concerts joins a tribute to Sibelius, "Northern Lights," which begins tomorrow at Lincoln Center in Manhattan.

Thursday's concert, which begins at 8:30 P.M. in the Montclair High School Auditorium, is being presented by Unity Concerts.

Mr. Perlman's program is presented by Unity Concerts, an organization that has been bringing music to northern New Jersey since 1920.