Rotterdam Events – Saturday, Jul 4

3 electronic music events in Rotterdam on Saturday, July 4, 2026. Highlights: Modular Open Air at Stadshaven Brouwerij (Bella Claxton, Freddi); Toffler presents Steve Riddm and friends at Toffler (Django, Steve Riddm); The Social Room at De Pilsbar (Simon Kidzoo). Across 3 venues.