John Griffiths' book on Neapolitan Lute Music looks very informative - you can read some of it on Google Books:
*http://tinyurl.com/5cjr6v* These links to Google Books are not always successful. Looks like the works of Dentice and Severino could be added to the viola/vihuela repertoire. Rob -- To get on or off this list see list information at http://www.cs.dartmouth.edu/~wbc/lute-admin/index.html