The new Idelsohn Society for Musical Preservation has a website that includes a blog, a wiki and information about old recordings.
http://www.idelsohnsociety.com/home.html
While some may believe that much of this music deserves to be lost –and for good –, others are thrilled with the revival of the Jewish music of this era. Well, with the new generation, what is old is always new again. Take a look at what your grandma listened to when she was your age… and make up your own mind.