1903-1969 adorno analysis appreciation aspectmoral aspectsocial autobiography beatles biography chronology composers criticismandinterpretation discography etlamusique grammofoonplaten history historyandcriticism individualcomposer maatschappij moralandethicalaspects moralandethicalaspectsofmusic music musicandmorals musician musicians musikphilosophie musique muziek muzieksociologie persoonlijkelevenssfeer philosophieetesthétique philosophyandaesthetics popmuziek popsong popularmusic rockgroups rockmusic rockmusicians socialaspects socialaspectsofmusic songs thebeatles theodorwiesengrund tonträger verzeichnis zeittafel