Böhmischer Traum, meaning Bohemian Dream, is a German polka written by Norbert Gälle in 1992 and performed by Scherzachtaler Blasmusik. It became one of the most popular modern brass band pieces in German-speaking countries, played at festivals, weddings and beer tents. Online, shorter excerpts became attached to MontanaBlack, the German livestreamer whose community shares the tune as a recognisable meme sound. That second life on soundboards and in edits keeps the polka circulating far beyond traditional brass music audiences.