austria bbc bach gesellschaft brown university canada catalan language chinese language choral public domain library copyright creative commons danish language dutch language early music english language franz liszt french language german language greek language image scanner italian language johann sebastian bach johannes brahms korean language mit opencourseware manhattan school of music massachusetts institute of technology mcgill university mediawiki michael geist musicology natural language oberlin conservatory of music polish language portuguese language project gutenberg public domain russian language sheet music spanish language stanford university swedish language turkish language uniform resource locator united states universal edition university of washington university of wisconsin-madison vienna werner icking music archive wiki