. "4941 784.1894 |c Improvisatievormen, virtuoze vormen |d Improvisatory forms, virtuoso forms 785.19 |c Nonetten en groter |d Nonets and larger 785.32 |c Ensembles van hout, koper, snaren, slagwerk, toets |d Ensembles of woodwind, brass, strings, percussion, keyboard 785.321991894" . "4941" . "4941" . "784.1894 |c Improvisatievormen, virtuoze vormen |d Improvisatory forms, virtuoso forms" . "785.321991894" . "785.32 |c Ensembles van hout, koper, snaren, slagwerk, toets |d Ensembles of woodwind, brass, strings, percussion, keyboard" . "785.19 |c Nonetten en groter |d Nonets and larger" . . . . .