Fifty singers from the Summer School will present a concert on WGBH-TV, Channel 2, tonight at 9. The program, under the direction of Harold C. Schmidt, professor of music at Stanford University, will include Renaissance madrigals and selections from opera and contemporary choral music, it was announced. Dorothy Crawford is scheduled to be soprano soloist, while Rafael Ferrer and Anne Chamberlain will accompany the chorus.

The full chorus of 85 singers will present the annual chorus concert on Tuesday, August 13th in Sanders Theatre. Included in the program will be works by Vaughan-Williams, Brahms, and Randall Thompson.

Vosgerchian

Another concert scheduled for next week is a piano recital by Luise Vosgerchian. This concert, third in the Summer School series, will be held Monday, August 5th at 8:30 P. M. in Paine Hall. It is open to the public without charge.

Miss Vosgerchian, a frequent soloist and ensemble performer in Boston, will present works by Scarlatti and Chopin, and the Sonata Opus 101 by Beethoven.

In addition she will perform in its first local presentation her own composition, Recitative and Aria, written in Paris in 1954.

The MIT-Harvard Joint Program will present an organ recital by George Faxon, Wednesday, August 7, at 8:30 pm in MIT's Kresge Hall. Privilege cards will admit Summer School students and their wives or husbands. Harvard corporation appointees may gain admittance upon application for pass at Greys Hall 1. Tickets for the general public will cost 75 cents, sold at the door.