In the months of July and August, almost every self-respecting village or town (you) has its own party. In the south of Le Marche these are often called a Sagra, in the north Festa. The theme is often a local dish or market with local products and crafts.
Anyway, you can always eat there. There are too many to mention, but on the site of Giraitalia you can see what is going on in Le Marche.

The festival of sausages takes place in Carassai in August. Complete with live music.