Gerardus Hubertus Galenus von Brucken Fock (28 December 1859 – 15 August 1935) was a nineteenth-century classical Dutch pianist who gave up his career as a performer to compose and paint.Constantly torn between art and church, he traveled much in Europe, later establishing himself in Amsterdam.
Married to the daughter of a member of the Zeeland parliament, he joined the Salvation Army and traveled from place to place in France, preaching and playing organ.
He was also considered a very good draftsman and watercolorist whose works often inspired his own musical pieces.
His orchestral works frequently lean towards French Impressionists like Claude Debussy and Maurice Ravel.