"10698" . "783.12421470949213" . "T0949213 |c Friesland |d Frisia" . . "783.12 |c Duetten (verschillende zangstemmen) |d Duets (different singing voices)" . . "10698 781.47 |c Met begeleiding |d With accompaniment 782.42 |c Liederen |d Songs 783.12 |c Duetten (verschillende zangstemmen) |d Duets (different singing voices) 783.12421470949213 T0949213 |c Friesland |d Frisia" . . . "782.42 |c Liederen |d Songs" . . "10698" . . "781.47 |c Met begeleiding |d With accompaniment" .