Information: - Wilhelm Backhaus ( ' Bachaus ' on some record labels ) ( 26 March 1884 -- 5 July 1969 ) was a German pianist and pedagogue . He was particularly well known for his interpretations of Beethoven and romantic music such as that by Brahms . He was also much admired as a chamber musician . He seems to have favoured Bosendorfer pianos as he can be seen playing this instrument in commercial videos with Karl Bohm and Hans Knappertsbusch conducting . Also see his original photograph and handwritten letter of appreciation of the Bosendorfer in their main showroom in Vienna . - A pianist is an individual musician who plays the piano. Most forms of Western music can make use of the piano. Consequently, pianists have a wide variety of repertoire and styles to choose from, including traditionally classical music, Jazz, blues and all sorts of popular music, including rock music. Most pianists can, to a certain extent, play other keyboard-related instruments such as the synthesizer, harpsichord, celesta and the organ and keyboard. Perhaps the greatest pianist of all time was Franz Liszt, whose piano mastery was described by Anton Rubinstein: "In comparison with Liszt, all other pianists are children". - Romantic music is an era of Western classical music that began in the late 18th or early 19th century. It is related to Romanticism, the European artistic and literary movement that arose in the second half of the 18th century, and Romantic music in particular dominated the Romantic movement in Germany. In the Romantic period, music became more expressive and emotional, expanding to encompass literary, artistic, and philosophical themes. Famous early Romantic composers include Beethoven, Schubert, Schumann, Chopin, Mendelssohn, Bellini, and Berlioz. The late 19th century saw a dramatic expansion in the size of the orchestra and in the dynamic range and diversity of instruments used in this ensemble. Also, public concerts became a key part of urban middle class society, in contrast to earlier periods, when concerts were mainly paid for by and performed for aristocrats. Famous composers from the second half of the century include Johann Strauss II, Brahms, Liszt, Tchaikovsky, Verdi, and Wagner. Between 1890 and 1910, a third wave of composers including Dvoak, Mahler, Richard Strauss, Puccini, and Sibelius built on the work of middle Romantic composers to create even more complex and often much longer musical works. A prominent mark of late 19th century music is its nationalistic fervor, as exemplified by such figures as Dvoak, Sibelius, and Grieg. Other prominent late-century figures include Saint-Saens, Faure, Rachmaninoff and Franck. - Karl August Leopold Bohm (28 August 1894 in Graz 14 August 1981 in Salzburg) was an Austrian conductor. Particularly gifted in his interpretations of Wagner and Mozart, he is widely considered to be one of the greatest conductors of the 20th century. - Franz Liszt (born Franz Joseph Liszt) (in modern usage "Liszt Ferenc", ; October 22, 1811July 31, 1886) was a prolific 19th-century Hungarian composer, virtuoso pianist, conductor, music teacher, arranger, organist, philanthropist, author, nationalist and a Franciscan tertiary. - Rock music is a genre of popular music that originated as "rock and roll" in the United States in the 1950s, and developed into a range of different styles in the 1960s and later, particularly in the United Kingdom and the United States. It has its roots in 1940s' and 1950s' rock and roll, itself heavily influenced by blues, rhythm and blues and country music. Rock music also drew strongly on a number of other genres such as electric blues and folk, and incorporated influences from jazz, classical and other musical sources. - Graz is the capital of Styria and second-largest city in Austria after Vienna. On 1 January 2017, it had a population of 320,587 (of which 286,686 had principal residence status). In 2014, the population of the Graz Larger Urban Zone who had principal residence status stood at 605,143. - Salzburg (literally: "Salt Fortress") is the fourth-largest city in Austria and the capital of the federal state of Salzburg. Given the information, choose the subject and object entities that have the relation of 'country of citizenship'.
The answer to this question is:
wilhelm backhaus , germany