Smithsonian Folkways music available for download online… The complete catalog of Jewish recordings on the Folkways label, seems to be available through:
http://www.folkways.si.edu/search/SearchResults.aspx?BrowseBy=genre&Param=Judaica

The site allows you to listen to small excerpts of most
tracks, and to order the material on cassette or cd. These samples will allow people to know what they may wish to purchase and get a taste for the sound of the music… also to see “what’s in the catalog” in the way of Jewish music