minstrel: Sources needed

[Greg Lindahl]

I'm teaching a class at Pennsic about academic resources for learning
European vocal music. Two great resources are McGee's _Singing Early
Music_ and Margaret Switten's _The Medieval Lyric_. Both of these
contain CDs with proper pronunciations on them. Is there anything
similar?  Does anyone have a good introduction for the non-music-major
that they can recommend?

-- Gregory