Dublin folk duo the Guggenheim Grotto (pictured) return to the Linda on Friday along with M.R. Poulopoulos (8 PM, $17, 465-5233). . . . Loop maestro Keller Williams comes to Bearsville Theater on Saturday (9 PM, $35-$55, 845-679-4406). . . . Great Barrington’s Jordan Weller and the Feathers will play Club Helsinki on Saturday (9 PM, $12, 828-4800). . . . The Albany Sonic Arts Collective is back at the Upstate Artists Guild on Saturday featuring Rambutan, Loud and Sad and Chris Bassett (8 PM, $5, 694-3090). . . . Fresh off a Rest Fest debut, Rival Galaxies bring their synth rock to the Olde English Pub on Saturday (8 PM, free, 434-6533). . . . D.J. Miller and James Burton will bring solo acoustic sets to the Spring Street Gallery on Saturday (7:30 PM, 587-6433). . . . Jazz on the Lake 2013 comes to Lake George’s Shepard Park on Saturday and Sunday (free, 668-2616). . . . Barefoot troubadour Michael Franti returns to Upstate Concert Hall on Monday (8 PM, $28, 371-0012).