Polka dances, which developed from Continental quadrilles, are danced to polkas. Introduced to Ireland in the late 19th century, there are today hundreds of Irish polka tunes, which are most frequently played on the fiddle or button accordion. The Irish polka is dance music form in , typically 32 bars in length and subdivided into four parts, each 8 bars in length and played AABB. Irish polkas are typically played fast, at over 130 bpm, and are typically played with an off-beat accent. The polka also migrated to the Nordic countries where it is known by a variety of names in
Polka in the United States Polka Festival, SloveneFest, and Tony Petkovsek's Thanksgiving Polka Weekend. Beginning in the early 1970s, the phenomenon of "polka masses" began appearing. Polka masses are usually held by members of the Roman Catholic Church who consider the polka an important part of their ethnic heritages. The first polka mass was created by Father George Balasko in 1972 and the idea was spread by Father Frank Perkovich throughout the '70s and '80s. Both were polka musicians. In composing a polka mass, a musician either alters the lyrics of polka pieces to become more appropriate for a spiritual setting or creates an entirely