Imagining life on the road on the Architecture In Helsinki tour bus brings back visions of summer camp sing-a-longs, backyard birthday parties and general feelings of youthful exuberance. The Australian music collective spawned its first recording in a studio in Sydney called Supermelodyland, a magical sounding place built in a church hall which bore the debut album Fingers Crossed, the 2003 release that included the song “The Owls Go”—a twee pop masterpiece if there ever was one. Now, three albums later with the release of Places Like This (Polyvinyl), it is clear that the band has perfected its quirky appeal. The music is gleeful and enthusiastic, reminiscent of the B-52s with beach-party beats and a carnival atmosphere. But where the B-52s were four, Architecture In Helsinki includes at least six and sometimes eight (and counting), and it is definitely a case of the more the merrier. Sweet and complex, the music is a circus that’s more familiar than bizarre, where the clowns are funny, not scary, and the overstimulation never quite reaches its peak. A live show brings even more excitement with the flamboyant main vocalist Cameron Bird sometimes leading audience workout sessions or riding an exercise bike on stage. Hyperactive? Perhaps, but the melodies are calming too, often delivering a whimsical, almost poignant atmosphere when it’s most needed, just when you feel your happiness meter may be about to burst.

Sunday, October 14 at 8pm. Tralf Music Hall, 622 Main Street (852-2860/tralfmusichall.com).

$17.50/presale (box office, Ticketmaster.com/852-5000).