It looks like there is a link to the Chamber of Commerace tourism section - I would think they could e-mail you a bus schedule.

If they like museums I might suggest an excellent Salvador Dali museum in St Petersburg. And further south in Sarasota more more traditional art they will find the Ringling family { of circus fame } have an excellent museum.

And you might find some music info at www.foff.org

Don't forget to use sunscreen. Lots of it. Even if you are sitting in the shade.