Hi Tobin,

"Traditionelle Volksmusik" -> good question and some fine effort to expand the range of BiaB.

I do admire the effort Guido already put into this thread and I am sure I cannot add substantial contributions off the cuff to the above list.

I'd suggest, though, putting your effort onto somewhat more solid grounds via contacting one or the other musicologist, say. "Traditionelle deutsche Volksmusik" covers a wide range – musicologists should have some sort of canonical collections right at their fingertips.

Best wishes for your endeavor

Martin