Joseph Haydn, Franz Schubert, Gustav Mahler, ALBAN Berg, Johann Strauss II, Franz von Suppe, Hugo WOLF, and Wolfgang Amadeus Mozart are all Austrian composers who have made significant contributions to the world of classical music. Haydn is known as the 'Father of the Symphony' and was a prolific composer of symphonies, operas, and chamber music. Schubert was a master of the lieder form and wrote over 600 songs. Mahler was a conductor and composer of symphonies and songs. Berg was a student of Arnold Schoenberg and wrote atonal works. Strauss II was a waltz king and wrote some of the most famous waltzes of all time. Suppe was a composer of operettas and light operas. WOLF was a composer of lieder and art songs. Mozart is one of the most famous composers of all time and wrote symphonies, operas, and chamber music.