A busy weekend of live music in NYC wound up with a fantastic, if somewhat mismatched, lineup at the Williamsburg Waterfront on Sunday. The show was the second installment of the relocated “Pool Parties,” a series of free summer shows shifted from McCarren Pool to East River State Park. The move has its benefits (beautiful river breezes, breathtaking views of the city) and drawbacks (beer pens and lots of state park rangers), but overall there’s no better way to spend no money in the city. Magnolia Electric Co. were a late addition to the bill when White Denim canceled, and though they were a downcast band to have sandwiched between the dynamic psychedelic punk of Crystal Antlers and the headspinning conjurations of that other band we sorta like, seeing Jason Molina work through his Josephine material in the flesh was still thrilling for anyone familiar with it. Unfortunately not many were, but no matter — the weather was perfect, Molina was patiently self-aware and delivered a touching if sedate set, and the day’s openers and closers were in top form. Dirty Projectors mixed their Bitte bits with Rise Above and New Attitude songs, Haley doubled Amber’s vocals on “Stillness,” and a Byrne-less “Knotty Pine” closed the day. If you couldn’t make it, take this four-song set and interview with the DPs on NPR as consolation.