. "Walsen, piano, KK IVa:012, E gr.t. (1829)" . . "CHOPIN, FRÉDÉRIC |f [componist]" . "102512 107231 12433 139923 139924 29333 CHOPIN, FRÉDÉRIC |f [componist] Walsen, piano, KK IVa:012, E gr.t. (1829)" . . "Walsen, piano, KK IVa:012, E gr.t. (1829)" . "107231" . . "139923" . . "29333" . "29333" . . "12433" . "102512" . . . "139924" .