The Clarinet Polka or A Hupfata (pl. Polka Dziadek = "Grandpa Polka"; ee. Vanaisa Polka) − a popular musical composition from the end of the 19th century. Since 1971 it has been used as an opener in Lato z Radiem − one of the most popular shows of Polskie Radio Program I.
The piece has a simple and catchy melody.

According to Polskie Radio Program I, the music was created in Austria by a composer named A. Humpfat. Other sources claim that The Clarinet Polka was written under the name Dziadunio Polka by the Polish composer Karol Namysłowski.