 These and other scholars found inspiration in Viennese Guido Adler and Englishman Alexander Ellis, who both produced articles in 1885 discussing “ethnological studies” of music and the equal treatment of every society’s music.Later, scholars turned to Austrian Erich Moritz von Hornbostel, credited with inventing the musical instrument categorization system still used today, and his 1905 article outlining "The Problems of Comparative Musicology.