Make Music Philly is an annual local music fest that takes place on the summer solstice each year, based on likewise DIY, opt-in fests all over the world. Here in Philly, the list of events (complete with handy map) run the gamut from showcase-type gigs in traditional music venues to pop-up events in parks and community centers. Low on hype but big on spirit, MMP is unlike pretty much any other music festival going today: It doesn’t cost anything (or at least not much), there’s no headliners, and the lineups themselves are pretty much beside the point. It’s about what it says it is — making music in Philly, irrespective of genre, experience and anywhere in the city you may be.