Igikoresho cyo Kwimenyereza Ritimu Poly Beat ni igikinisho cyo kwimenyereza ritimu cyagenewe abana. Ibishushanyo bya poligoni bikoreshwa kugira ngo ritimu y'umuziki igaragare, bikafasha abana gusobanukirwa n'amanota n'imiterere ya ritimu. Iki gikinisho gikorwa mu mapulasitiki yashizwemo mu buryo bw'ubukanishi (injection-moulded plastic). Abana bashyira uduce tw'amanota (note blocks) mu mpande (discs), hanyuma bagashyira izo mpande enye mu gishingiro cy'inkingi (column base). Kamera iri hejuru isoma amabara y'uduce, naho buto imwe igatuma hakina umuziki w'urutimi ruhuye n'ayo mabara. Buto ya kabiri ihindura ijwi rikaba iry'ingoma, marimba, piyano cyangwa gitari. Uburyo bwo kwishyira hamwe mu bwisanzure bw'uduce butuma abana bashobora gukora rya rimba bo ubwabo.

Izina ry'umushinga : Poly Beat, Izina ryabashushanya : Zhou Leijing, Izina ry'abakiriya : Zhejiang University.