"781.47 |c Met begeleiding |d With accompaniment" . . . . "1820" . "783.12 |c Duetten (verschillende zangstemmen) |d Duets (different singing voices)" . "782.43 |c Madrigalen, van poëzie afgeleide vormen |d Madrigals, forms derived from poetry" . . . "1820 781.47 |c Met begeleiding |d With accompaniment 782.43 |c Madrigalen, van poëzie afgeleide vormen |d Madrigals, forms derived from poetry 783.12 |c Duetten (verschillende zangstemmen) |d Duets (different singing voices) 783.1243147" . "783.1243147" . "1820" .