Peep ProbCause "Prelude To Summer (Part One) " Video, the latest visual from ProbCause. It dropped on Wednesday, September 11th, 2013. ProbCause's future brightens with every new release, and ProbCause "Prelude To Summer (Part One) " Video certainly isn't an exception. It's a fitting addition to a solid catalogue that ProbCause has been developing since stepping foot in the game. We're excited to hear more.