The flagship of modern jazz, Tampere Jazz Happening, was founded in 1982. Tampere Jazz Happening's unprejudiced and first-rate programme has turned the festival into one of Europe's most intriguing jazz happenings. The programme highlights the influence of concert, rock, and ethnic music on the development of modern jazz. The concerts are held at venues around the Old Customs House square: Restaurants Klubi and Telakka and at the Old Customs House Hall. The annual festival takes place on the weekend of All Saints' Day.