Americana never sounds more impassioned and soulful than it does with the Lone Bellow, the Georgia-bred, Brooklyn-based trio that brings its harmony-rich gospel fervor to the Lowell Summer Music series at Boarding House Park on Friday. If the song “New Americana” is your bag, dark electro-pop sensation Halsey headlines the Agganis Arena. And if you’d prefer a harbor breeze down at the Seaport, you can dance to remixes by DJ Windows 98 (Arcade Fire leader Win Butler), who’s slated to bring live percussionists to the ICA’s outdoor deck that overlooks the water. Or head further down the street to Blue Hills Bank Pavilion to catch the versatile, ultra-proficient jam band Umphrey’s McGee. R&B songstress Jill Scott also performs on Friday at the Opera House, while Belly returns to Royale. That alt-rock band sounded as good or even better than it did in the ’90s at that club on Tuesday. Here’s my recent interview with Belly frontwoman Tanya Donelly.

Saturday brings the Southern rock of Gov’t Mule and Blackberry Smoke (see my recent interview with the latter’s frontman Charlie Starr here) at Blue Hills Bank Pavilion, indie-rockers Dr. Dog at Lowell’s Boarding House Park, and Stoughton’s heartfelt country-folk icon Lori McKenna to the Sinclair. The Band Perry’s “Live Forever” has become an Olympic theme song and you can hear the anthemic country-bred pop rockers at the South Shore Music Circus on Sunday. And the same night at the Regent Theatre, the legendary Deep Purple guitarist Ritchie Blackmore offers the strangest makeover in rock with Blackmore’s Night, his Renaissance fair of a band with wife Candice Night. That’s been long sold out, even though it’s a long way from “Smoke on the Water” or “Highway Star.”