Article snapshot taken from Wikipedia with creative commons attribution-sharealike license.
Give it a read and then ask your questions in the chat.
We can research this topic together.
2009 studio album by Mark Feldman, Uri Caine Greg Cohen & Joey Baron
In his review for Allmusic, Michael G. Nastos notes that "this is music anyone can enjoy, no matter your religious or non-secular persuasion. What is most evident is that, although these songs are revealed perhaps for the first time on a contemporary recording, it's no secret as to the absolute brilliance of these four quality modern creative improvising musicians making this music all their own. It's a very strong release, and comes with the highest of recommendations". On All About Jazz Warren Allen said "Secrets finds them interpreting a variety of niggunim, the often wordless prayer melodies sung by sects of Hasidic Jews, and they mix a jazz sensibility with slight, indefinable touches of the avant-garde to create a quartet that speaks many languages in one voice".
Track listing
All compositions traditional nigunim of the Lubavitch, Satmar, Bobov and Modzitzer Hassidim