"1956-04-05"^^ . "13 15 p. 152 16000 1956-04-05 554447 Arrangement Freedman; Knight Ja (voor leden) LEEUWEN, GER VAN Orkest Ger van Leeuwen (VARA) Rock around the clock SOM-058100" . "SOM-058100" . "152" . "1956-04-05" . "16000" . . "Rock around the clock" . "13" . "Ja (voor leden)" . "LEEUWEN, GER VAN" . "Freedman; Knight" . . . "Rock around the clock" . "16000" . "554447" . . "15 p." . . . "15 p." . "Arrangement" . "Orkest Ger van Leeuwen (VARA)" . "Arrangement" . "Ja (voor leden)" . "554447" .