Christian and Annette Mondrup maintain an archive of scores for recorder ensembles. The latest addition is a madrigal consisting of 8 parts for 5 voices:
I've been reading Mattheson's Der vollkommene Capellemister and written about it a bit in my blog in the entries Mattheson on Perfection, The Location of Paradise Revealed, ...
I just found the page of a guy called Geejay who obsesses over the recorder. A fun read. Speaking of fun, what a concert this must have been: