"392475" . . . "FROBERGER, JOHANN JACOB |f [componist]" . . . "193517 392475 FROBERGER, JOHANN JACOB |f [componist] FROBERGUE Fuga's, toetsinstrument, FbWV 113a, e hypophrygisch" . "Fuga's, toetsinstrument, FbWV 113a, e hypophrygisch" . "392475" . "Fuga's, toetsinstrument, FbWV 113a, e hypophrygisch" . "193517" .