The Summer School Chorus will give its annual free public concert on Aug. 14, at 8:30 p.m. in Sanders Theatre. The 150-voice group under the direction of Harold C. Schmidt, Professor of Music and Director of Choral Music at Stanford, is the largest aggregation in the Chorus's history.

The program comprises music for both full chorus and madrigal groups including Randall Thompson's "Fanfare for Chorus" especially commissioned by Schmidt for the Chorus. Other pieces are excerpts from Purcell's "Come Ye Sons of Art Away," Brahms' "Tafellied," Palestrina's "Surgere Amica Mea," Mozart's Cantata K. 108 "Regina Coeli," Vaughan Williams' "In Windsor Forest," and the complete performance of Monteverdi's madrigal, "Hor Ch'el Ciel." Accompanists will be Bernard Kreger '59 and James Armstrong 2G.

In the course of its rehearsals, the chorus has also been preparing an hour-long educational television film, to be directed by WGBH and distributed throughout the nation by the Educational Television Center of Ann Arbor, Mich. The purpose of the film is to demonstrate the training of a chorus from the beginning rehearsals to the final concert. Two-thirds of the project has already been filmed in rehearsals. The last third of the film will be taken from the live television performance of the concert Aug. 14.