Reprinted from yesterday's late editions

Julius Rudel brought Wolf Trap one of the greatest evenings of music in its history Thursday with an evening of Mozart and Mahler played by the National Symphony Orchestra.

Maureen Forrester, subsituting for the ailing Tatiana Troyanos, sang Vitellia's great aria from "La Clemenza di Tito" and then, sharing honors with young Finnish tenor Peter Lindroos, contributed mightly to Mahler's "Das Lied von der Erde." Rudel preceded the Mahler with Mozart's "Figaro" Overture and the "Haffner" Symphony.

Despite the humidity of the evening, the orchestra was in excellent form once past the overture. Its tone glowed effulgently through the rich Mahler pages.

Lindroos is a great find, an exciting young artist with a big lyric tenor which he handles flawlessly. He sang with ardor and expressive style. As he comes to know the subtleties of Mahler more intimately, he should become one of its fine interpreters.

To hear Forrester in this work is to know one of the greatest experiences in music. Under Rudel's sensitive leadership, she created almost unbearable beauty. It is hard to think of a higher realm of inerpretive art. And she made her sudden appearance here at the cost of having to take a 1 a.m. bus back to New York for connections to Ottawa! She combines high art with great personal generosity.