Ernest Bloch was a 20th-century Swiss-born American composer. He began playing the violin at age 9. He began composing soon after. He studied music at the conservatory in Brussels, where his teachers included the celebrated Belgian violinist Eugène Ysaÿe. He then travelled around Europe, moving to Germany (where he studied composition from 1900–1901 with Iwan Knorr at the Hoch Conservatory in Frankfurt), on to Paris in 1903 and back to Geneva before settling in the United States in 1916, taking American citizenship in 1924.