Brock has restored silent film scores for various films including Dmitri Shostakovich's only silent film score, The New Babylon, Manilo Mazza's Italian epic, Cabiria, Erik Satie's dadaist score, Entr'acte and George Antheil's score to Ballet mécanique. Other film-score restorations include Max Butting's Opus I, Camille Saint-Saëns' L'Assassinat du duc de Guise and Ildebrando Pizzetti's Sinfonia del fuoco.
In 1998, the Charlie Chaplin estate commissioned Brock to restore the Chaplin-composed score to Modern Times. Brock then restored 11 more Chaplin silent feature and short scores through 2012, including City Lights, The Gold Rush, and The Circus. In 2004, Brock transcribed some 13 hours of unheard Chaplin compositions from a newly discovered acetate recording of Chaplin composing on the piano. This resulted in the creation of a new score for Chaplin's feature drama A Woman of Paris, a work that Brock has conducted in concert a number of times, including at Cinema Ritrovato 2005 in Bologna, the Kino Babylon in Berlin in 2011, as well as a studio recording made with Orchestra Citta Aperta in Rome and London, with whom he has also conducted a complete recording of The Gold Rush in 2012.
Original scores
Brock has written 27 original scores for silent film, including Miss Europe, Steamboat Bill, Jr., , The Cameraman, Burlesque on Carmen and The Cabinet of Dr. Caligari. Brock's long-standing relationship with the world-leading film-preservation institution, the Cineteca di Bologna, has resulted in 7 scores. Among them are Nosferatu, Lady Windermere's Fan, 3 Bad Men and Feu Mathias Pascal.
Concert works
Brock's concert works include three symphonies, three concertos, a cantata, two operas, and a number of individual orchestral pieces. In 1995 he received a composer fellowship from the Artist Trust Foundation, during which he composed his first operaBilly, the Divertimento: Five Picture-Postcards for Orchestra, and his second opera, Mudhoney. In 1999, he was commissioned to compose an orchestral song cycle for soprano Cyndia Sieden: The Funeral of Youth, four orchestral settings to four poems of the English poetRupert Brooke.
