The lecture was given on July 27th, 1981. The discussion dealt with two anonymous eighteenth-century works: a Symphonia, Anon. 32b in D for two trumpets, two oboes, two violins, viola and bassoon; and a Concerto, Anon. 3 in D for trumpet, three oboes, and two bassoons. Both works are from part-books, originally owned by the Prussian General Georg von Lilien (1652-1726), which are now part of the "Sonsfeld Collection" housed in the Bibliotheca Furstenbergiana at Schloss Herdringen, W. Germany. The lecture included an examination of the origin of the manuscripts, the historical background for the works, and aspects of mixed style in the music. It also contained an analytical discussion of each work. Both works were then performed. In addition to the lecture recital three other recitals of music for solo trumpet were given. The first recital was given on November 21, 1977 and included the Concerto for Trumpet by Johann Nepomuk Hummel, and works of Henry Purcell, Halsey Stevens, and Eugene Bozza. The second recital was presented on July 3, 1978. It featured the Concerto in A('(FLAT)) by Alexander Arutunian along with works of Georges Enesco, Jean Rivier, and Allen Molineux. The third recital included works of Ernest Bloch, …