György Kurtág's Officium Breve in memoriam Andreae Szervánszky (op. 28) for string quartet, is a remarkable synthesis of varied compositional techniques, musical sources, and extramusical associations. Its sources in the music of its dedicatee and that of Anton Webern provide the basis for an original work. Kurtág not only quotes Webern, but makes extensive use of his compositional materials and practices. Kurtág also includes a quotation from Szervánszky's Serenade for String Orchestra. Kurtág's work reflects Webern's serial thinking in general, is the construction of a musical structure reflecting multiple or combined uses of material. Kurtág combines sources from two different musical works and two different minds to fashion a new and very moving work of his own. The Officium Breve is emblematic of one of Kurtág's primary creative outlets, the homage.