"RÜCKERT, FRIEDRICH |f [tekstdichter]" . "174477" . . "SCHUMANN, ROBERT |f [componist]" . . . "174476" . . . "151774 174476 174477 411948 Ritornellen, mannenkoor (6 st.), op. 065 (1847) RÜCKERT, FRIEDRICH |f [tekstdichter] SCHUMANN, ROBERT |f [componist]" . "151774" . . . "Ritornellen, mannenkoor (6 st.), op. 065 (1847)" . "411948" . . "Ritornellen, mannenkoor (6 st.), op. 065 (1847)" . "411948" .