Jewish music is the music and melodies of the Jewish people. There exist both traditions of religious music, as sung at the synagogue and domestic prayers, and of secular music, such as klezmer. While some elements of Jewish music may originate in biblical times, differences of rhythm and sound can be found among later Jewish communities that have been musically influenced by location. In the nineteenth century, religious reform led to composition of ecclesiastic music in the styles of classical music. A number of modern Jewish composers have been aware of and influenced by the different traditions of Jewish music.