A very interesting group of 3 Breslev Chassidim, who tour the US and Canada widely, but live in Sfat Israel. The instrumentation is two guitars and one violin. The have two recordings “Be Happy” and “Fresh Air”. They also sing. To sample some music, http://www.judaism.com/display.asp?type=music&uniqueTitle=95571 on real audio.
http://www.simplytsfat.com/