Klezmer (from Yiddish כּלי־זמיר, kley - instrument and zemer - song; etymologically from Hebrew k'li zemer כלי זמר, "musical instrument") is a musical tradition which parallels Hasidic and Ashkenazic Judaism. Around the 15th century, a tradition of secular (non-liturgical) Jewish music was developed by musicians called klezmorim or kleyzmurim. They draw on devotional traditions extending back into Biblical times, and their musical legacy of klezmer continues to evolve today.
Aish Talmud (California), Anthology of Jewish Music (Vancouver), Arutz Sheva (Israel), Israeli Music Online (New Jersey), Israel Radion International (non-Hebrew), Jewish Internet TV (North Carolina)...