This is the concert program of the Chamber Music Concert on Friday, December 5, 1986 at 12:30 p.m., at the Concert Hall, 855 Commonwealth Avenue. Works performed were SOnate by Wilhelm Friedemann Bach, Jour D'été a la Montagne by Eugène Bozza, Serenade, Op. 10 by Erno V. Dohnanyi, and Trio No. 11, Op. 61 by Francois Devienne. Digitization for Boston University Concert Programs was supported by the Boston University Humanities Library Endowed Fund