He was born on September 9, 1872 in Humpolec in Bohemia. He worked as a conductor in Prague and Berlin before being selected by the New York Philharmonic to replace Gustav Mahler on Mahler's death in 1911. Some commentators did not see Stránský as a worthy successor to Mahler: the periodical Musical America wrote: An article in the New York Times about the appointment began: "The financial backers of the New York Philharmonic Orchestra will be interested to learn that the German artistic world is filled with astonishment over the engagement of Josef Stransky of Berlin as the successor to the late Gustav Mahler", before going on to allege that Stránský was chosen over other candidates such as Oskar Fried and Bruno Walter because of his low financial demands. Stransky had the widest repertoire of any of the Philharmonic's previous conductors. Stránský married Marie Doxrud, a soprano from Norway, in 1912. During his tenure with the Philharmonic, Stránský received praise for his interpretations of Franz Liszt and Richard Strauss by the prominent critic Henry T. Finck of the New York Evening Post. However, Daniel Gregory Mason expressed his dissatisfaction with what he referred to as "the Wagnerian, Lisztian and Tschaikowskian pap ladled out to us by ... Stransky of the Phihamonic Society", and went as far as to call the conductor "a total musical incompetent". In an even more biting critique published in H. L. Mencken's American Mercury Magazine, critic D. W. Sinclair wrote , New York Mahler scholar Henry-Louis de La Grange has characterized Stránský as a "conscientious but uninspiring" leader, who allowed the high performing levels achieved by Mahler to fall. From his installation in 1911 until the end of the 1919–20 season, Stránský conducted every Philharmonic concert. He conducted the orchestra's first recordings, which were made for Columbia Records. He was elected an honorary member of Phi Mu Alpha Sinfonia fraternity, the national fraternity for men in music, in 1917 by the fraternity's Alpha chapter at the New England Conservatory of Music in Boston, Massachusetts. In 1921 the Philharmonic merged with the National Symphony, conducted by Willem Mengelberg. For the 1922–23 season, Stránský conducted the first half of the season and Mengelberg the second: Stránský subsequently left the orchestra.
Art dealer
Stránský ultimately left the musical profession to become an art dealer, specializing in Picasso's Rose Period. He was a partner in the art gallery in New York City. The gallery became in 1933. Before his death, Stránský amassed a private art collection that included more than 50 major impressionist and post-impressionist paintings by Picasso, Van Gogh, Gauguin, Renoir, Monet, Manet, Degas, Cézanne, Matisse, Seurat, Toulouse-Lautrec, Pissarro, Sisley, Delacroix, Ingres, Corot, Courbet, Daumier, Derain, Boudin, Modigliani, Segonzac, Fantin-Latour, Vuillard, Utrillo, Vlaminck, Guys, Laurencin, Rouault, Gromaire, and others. He also owned a large collection of old master paintings, and was a recognized authority on the old masters. Had this group of works remained intact and in private hands, today it would be one of the most valuable privately held art collections in the world. Recently, Stránský was discovered to have owned for many years a 1785 painting by Nicolas Benjamin Delapierre that may be the earliest known portrait of Thomas Jefferson. It was sold by the estate of his widow in October 1954. Stránský died in New York City on March 6, 1936 and is buried at Woodlawn Cemetery in the Bronx, New York City.