From "rakko" [bladder] + "pilli" [whistle/pipe]; Mrs. A.N. Černaya (А.Н. Черная); née Filatova, of the village Luzhitsy (Лужицы) recalls that, when she was a child, her father, Nikolai Mikhailovič Filatov (Николай Михайлович Филатов), made a rattle from a pig's bladder (in which peas were poured) tied to a stick"; NB¹: Luzhitsy [local name: Luutsa] is a village in the Ust-Luzhskoye rural settlement (on the coast of the Finnish Gulf) in the Kingiseppsky District (at the border with Estonia) of the Leningrad Region; NB²: ➺ homonym (bagpipe).