Alison Krauss is just one of several reasons to get to Copley Square for the free Summer Arts Weekend happening Friday through Sunday. Some highlights:
With roots in Boston, as well as in bluegrass, country, folk, and pop, this modern string band came into its own on its new album, “This World Oft Can Be,” released in May on Rounder Records. Friday at 7:20 p.m.
DR. JOHN AND THE NITE TRIPPERS
Last year’s “Locked Down,” produced by the Black Keys’ Dan Auerbach, reinvigorated this icon of New Orleans funk, rock, and blues. Recent live performances have perfectly captured that album’s spellbinding charms. Friday at 8:20 p.m.
PRESERVATION HALL JAZZ BAND
Without fail, this long-running and beloved ensemble from New Orleans always gets its audiences out in the aisles, dancing like it’s last call in the Crescent City. Friday at 9:20 p.m.
From Brooklyn, this rising band in the realm of world music makes mincemeat of its influences, conjuring a strange brew of dance tunes equally indebted to funk and Indian bhangra music. Saturday at 6:30 p.m.
This vibrant singer-songwriter from Benin has become an ambassador not only for her home country, but also for the power of music that brims with joy and resilience. Saturday at 9:30 p.m.