In the Classical music bins this stuff is often categorized as "Early Music" (at least here in the States). The rediscovery of the recorder actually had a lot to do with the revival of this music. A fellow named Arnold Dolmetsch discovered an old recorder somewhere and started noodling with it, and eventually started making new ones. Some of the groups I've heard are The Waverly Consort, The Folger Consort and Ensemble Alcatraz.

The further back you go,the less clearly this music was notated, so it becomes very much interpretational. If you check around, you might find an Early Music society not far from where you live. It has become very popular among amateur classical musicians. Also check Recorder societies, since the reportoire for the recorder is mostly older than the hills.

Frank i.t.s.