Based in Englewood, N.J., this is a vocal group of orthodox men who perform a capella and with simcha bands. Benny Amar and Alex Katz co-founded the group to perform “at bar/bat mitzvahs, chuppahs, sheva berachos, banquets and more.” They have a CD, Kulanu B’Yachad, which has instrumental accompaniments interspersed with a capella. It is interesting to see how the group’s tunes turn from traditional Jewish music to incorporating elements of American music including moments from old spirituals and pop tunes to modern orthodox.
http://www.kolzimra.com/website/