With all the orchestra seats engaged, and the balcony selling out rapidly, the first Cambridge concert of the 43rd season of the Boston Symphony Orchestra will be given tonight at 8 o'clock in Sanders Theatre. Mr. Pierre Manteux, leader of the Boston Symphony Orchestra for his fifth and last season is to conduct.

The program of tonight's concert will be different from that of the opening concert in Symphony Hall last Friday in all except two numbers,-Brahm's Variations on a theme by Haydn, and Strauss Dance of the Seven Veils from "Salome". The numbers which Mr. Monteux will play tonight for the first time are Rachmaninov, Symphony No. 2; Saint-Saens, aria from "Sampson and Delilah"; and Verdi, aria from "San Carlos."

Miss Kathryn Meisle, contralto, will be the soloist.

Season Began Auspiciously

The orchestra began its season very auspiciously at its first concert on Friday. The masterful conducting of Mr. Monteux, the finish of his orchestra, and the enthusiasm of the packed audience made it what has been called "one of the most brilliant concerts in the history of the Boston Symphony Orchestra since Arthur Nikiseh first stepped on the platform of the old Music Hall."

If Mr. Monteux gives as artistic an interpretation to the new numbers of tonight's concert as he has already displayed in the selections from Brahms and Strauss, the audience in Sanders Theatre may be assured of a most satisfying concert.

Especially enthusiastic was the audience over the rendering of the Dance of the Seven Veils from "Salome". Of this version, one critic said, "The music exhales languors, weaves repetitions, sensuously rustles and prickles. When Strauss would have it a smother of sensuality in the full, thick, velvet voices of horns and violoncellos; when he would have his wood-winds bite as with the little white teeth of Salome in the old chronicles; when the dance ends in a whirr of trills, high and shrill, darting and piercing, the conductor was heightening voice to the composer and as quick, sure-fingered, with every thread of instrumental color."