Pieces where guitar is included in the orchestra (or other ensemble), and not a soloist?

I'm thinking of including a classical guitar in my next orchestral piece, and I'm looking for some pieces to score-read. Specifically looking for pieces where the guitar functions as a "regular" member of the orchestra, and not a soloist (so concerti are probably out, unless there's one in which the guitarist and orchestra play together a lot). Chamber music would also be great.