Chris L Beckwith replied:

>If you have particular recordings to recommend of any these
>other pieces, please drop me a note.  You've been quite helpful.

One group that I've been wanting to hear (but admittedly haven't yet) is--
and I'm serious, this is their name--"The Rare Fruits Council".  Their
Biber recordings are available on Astree.  Highly recommended by folks
on the EM List and EM Recordings List, right down to this group's tuning
choices (very important when considering the intricacies of scordatura).

Bill H.