. "783.11943" . "782.43 |c Madrigalen, van poëzie afgeleide vormen |d Madrigals, forms derived from poetry" . . "6110" . "6110" . "6110 782.43 |c Madrigalen, van poëzie afgeleide vormen |d Madrigals, forms derived from poetry 783.1 |c Ensembles van zangstemmen |d Singing voices in combination 783.11943" . . . "783.1 |c Ensembles van zangstemmen |d Singing voices in combination" .