"1878"^^ . "at" . . "Heinrich Proch" . "Proch, H." . . "1809"^^ . "componist"@nl . . "Proch, Heinrich (1809-1878)" . "Proch" . _:B8a0b4b3b5278128cfdf5ce29c08d49d1 . "Heinrich" . "dirigent, librettist, zangleraar" . . _:B8a0b4b3b5278128cfdf5ce29c08d49d1 . _:B8a0b4b3b5278128cfdf5ce29c08d49d1 . _:B8a0b4b3b5278128cfdf5ce29c08d49d1 "2023-05-22"^^ . _:B8a0b4b3b5278128cfdf5ce29c08d49d1 . _:B8a0b4b3b5278128cfdf5ce29c08d49d1 . _:B8a0b4b3b5278128cfdf5ce29c08d49d1 "174361564" . _:B8a0b4b3b5278128cfdf5ce29c08d49d1 . _:B8a0b4b3b5278128cfdf5ce29c08d49d1 . _:B8a0b4b3b5278128cfdf5ce29c08d49d1 .