J.P.P. is a group of Finnish folk musicians from Kaustinen. The group still uses the Kaustinen traditional settings with fiddles, harmonium and double bass, although their arrangements are more advanced than those of earlier generations of traditional musicians in the area. The group's repertoire consists of traditional tunes, as well as newly-composed music in old-style dance rhythms -- polskas, waltzes, schottisches, etc. -- as well as some Finnish-style tangos, and some jazz and bluegrass influences too.