. "Christian Albert Theodor Billroth (26 April 1829 \u2013 6 February 1894) was a Prussian-born Austrian surgeon and amateur musician.As a surgeon, he is generally regarded as the founding father of modern abdominal surgery. As a musician, he was a close friend and confidant of Johannes Brahms, a leading patron of the Viennese musical scene, and one of the first to attempt a scientific analysis of musicality."@en . . "1829-04-26Z"^^ . "Billroth, Theodor"@en . "Christian Albert Theodor Billroth"@en . . . "1894-02-06Z"^^ . . . . . . . "Austrian musician" . "1829Z"^^ . . . "1894Z"^^ . .