Tripdavon originally flourished in Isla Vista, where throngs of wandering revelers allow for a greater variety of musical acts. The band’s first gig had them performing at an apartment complex on Del Playa Drive for 400 I.V. partiers. They called it 25-a-Palooza. “In I.V., you have a captive audience,” guitarist Greg Doscher said. “We had people lying on their roof and listening to our first gig. It was great…. The kind of energy you find in IV — you just can’t match that anywhere else.”