When two of the most feel-good acts in modern music share a stage, a hootenanny is bound to form. On Friday night at MGM Music Hall, that hooteanny was all Boston’s. Allen Stone and Ripe’s co-headline show felt like a celebration from the jump, but for Ripe, it was something more. It was a genuine hometown moment that doubled as a victory lap.

Winter was quietly making its presence felt in New York City, and it felt only right that the Icelandic folk-rock outfit Of Monsters and Men arrived just as the season shifted. After postponing the first few dates of this American tour while frontwoman Nanna Bryndís Hilmarsdóttir recovered from vocal rest, the band landed in Brooklyn for the official start of the run, and the crowd let them know they were ready.

Boston’s House of Blues was a full on hootenanny. The 502s, proudly billing themselves as “The Happiest Band on Earth,” lived up to the title in full, leading a roomful of fans through a nonstop celebration that spanned from the opening note to the final encore.

There’s sold-out, and then there’s really sold-out. On Wednesday night at Boston’s Roadrunner, The Beaches showed they’re the kind of band that makes a room feel like it’s about to burst at the seams. The last time the Toronto four-piece rolled through town, they topped out at The Royale. Before that, they were just another opener hoping for a few new fans. This time, they had the biggest club in the city on lock, and I’ve never seen it so packed.

On a cool fall evening in Cambridge, Coral Moons turned The Sinclair into their own personal living room. The local-roots indie quartet kicked off the fall leg of their tour on September 10 with a set that felt both celebratory and grounded. It was a proper homecoming for a band that’s spent the summer on the road.

On Wednesday, September 3, Portland, Maine, felt like it was showing off. The skies were clear, the air had just a hint of fall crispness, and Thompson’s Point was packed for the first night of Vance Joy’s American tour. Maine is known for bringing autumn in early, and this show made the season’s arrival feel celebratory.

By the time the sun dipped low over Thompson’s Point, the crowd was already moving. Portland’s waterfront venue was buzzing with energy Saturday night as Lake Street Dive returned for their annual summer stop, joined by the high-energy force that is Sammy Rae & The Friends.

It had been exactly eight years since Katy Perry last played Boston, a fact she gleefully pointed out at TD Garden on August 8, the eighth day of the eighth month. The symmetry didn’t stop there: her stage was shaped like an infinity symbol, and for much of the night she seemed suspended somewhere between pop concert and high-wire circus act.

Leave it to Ben & Jerry’s to host a concert that hits every sensory pleasure point. Free ice cream? Check. Golden hour lighting against a backdrop of Vermont’s green mountains? Check. A double bill featuring one of blues rock’s reigning legends and its teenage heir apparent? Big check.

Incredible headliners Mt. Joy, Courtney Barnett, and Waxahatchee anchor incredible music festival in Western Massachusetts, the Green River Festival.

It was a Tuesday night in Foxborough. But you’d never have guessed that from the crowd rocking inside Gillette Stadium.