1807-1887 1903-1969 adorno aspectmoral aspectsocial autobiography biography composers criticismandinterpretation etlamusique ewigerjude friedrichtheodor friedrichtheodorvon historyandcriticism individualcomposer jewsinopera maatschappij moralandethicalaspects moralandethicalaspectsofmusic music musicandmorals musicandsociety musician musicians musikästhetik musikkritik musique muziek muzieksociologie philosophieetesthétique philosophyandaesthetics socialaspects socialaspectsofmusic theodorwiesengrund vischer wanderingjew