In summer, Grožnjan’s car-free cobbled alleys resound with musical instruments of all kinds. A local young musicians’ summer school (www.hgm.hr) stages daytime lessons, so you’ll hear instruments being tuned in the practice rooms. Regular concerts are arranged on balmy evenings through July and August. Simultaneously, the three-week Jazz is Back (www.jazzisbackbp.com) festival attracts highly acclaimed international musicians—American jazz trombonist Luis Bonilla played here in July 2014.