"3479" . . "3479 781.43 |c Methodes, vocalises, uitvoeringstechnieken |d Methods, vocalises, performance techniques 786.2 |c Piano |d Piano 786.2143" . . "3479" . "786.2143" . . "786.2 |c Piano |d Piano" . "781.43 |c Methodes, vocalises, uitvoeringstechnieken |d Methods, vocalises, performance techniques" . .