David Frederick Stock (1939–2015) was an influential American composer and conductor, primarily recognized for his contributions to contemporary classical music. He was born in 1939 in the United States and studied at the University of Southern California and the University of Michigan, where he honed his craft in composition and music theory. Stock's genre primarily encompassed modern classical, with a focus on orchestral and chamber works. He was a prolific composer, creating over 200 works, including notable pieces like "Concerto for Orchestra," "The Golem," and numerous chamber compositions. His music often reflected a blend of traditional forms with innovative techniques, incorporating elements of jazz and popular music. In addition to his compositions, Stock was a dedicated educator, serving on the faculty of Duquesne University for many years, where he influenced a generation of musicians. He was also the founder and conductor of the Pittsburgh New Music Ensemble, promoting contemporary music and fostering collaborations among composers and performers. Stock's impact on music lies in his commitment to expanding the boundaries of classical music and his role in advocating for new works, helping to shape the landscape of American contemporary music throughout the late 20th century.