In the field of music, Germany claims some of the most renowned classical composers of the world including Bach, Mozart and Beethoven, who marked the transition between the Classical and Romantic eras in Western classical music. Other composers of the Austro-German tradition who achieved international fame include Brahms, Wagner, Haydn, Schubert, Händel, Schumann, Liszt, Mendelssohn Bartholdy, Johann Strauss II, Bruckner, Mahler, Telemann, Richard Strauss, Schoenberg, Orff, and most recently, Henze, Lachenmann, and Stockhausen.
Who marked the switch from classical to romantic eras in classical music?
{'text': 'Beethoven', 'answer_start': 124}