The Fourth Unternational

Klezmer is the traditional instrumental music of Ashkenazi Jews from Eastern Europe, originally performed by itinerant bands for weddings and communal celebrations. It is characterized by expressive, voice-like ornamentation (krekhts, slides, trills), flexible phrasing, and a repertoire of dance forms such as freylekhs, bulgar, sher, khosidl, and horas. Modal color is central: the freygish (Ahava Rabbah/Phrygian dominant) and Mi Sheberakh (Ukrainian Dorian) modes are common, lending the music its plaintive, celebratory, and at times bittersweet sound. Typical ensembles feature clarinet or violin as lead, with tsimbl (hammered dulcimer), accordion, trumpet/trombone, bass, and later American additions like piano and drum set. While rooted in Jewish liturgical and Hasidic song, klezmer absorbed 19th‑century European social dances (polka, waltz, mazurka) and Balkan/Romanian influences (notably the free-rhythm doina), producing a flexible style that moves from rhapsodic improvisation to propulsive dance tunes.