BOSTON-As if you needed another reason to move to Canada, Toronto indie-rock collective Broken Social Scene gave an inspiring performance at the Avalon Saturday night. From start to finish, it was brilliant-their music, their make-up, their ethos. Squished between strangers, bouncing and bobbing to the band's amazing sound, I felt they had completely changed my opinion of good music. Like much of the crowd surrounding me, I felt oddly at home. At any given time during their set, there were more musicians on stage than at a school band concert-five guitarists, a bassist, a violinist, a bevy of brass players, sometimes two drummers and a woman with a bouffant of sorts (who only knew how to sing and look bored.) Members traded their instruments at a whim, crossing the stage switching from something brass to something stringed. The members of Feist, who opened up the night, joined in on a bunch of songs, pleasing crowd members who wanted to hear titular frontwoman Leslie Feist, an occasional member of Broken Social Scene, sing in the group again.

Feist's opening set featured a number of mellow songs mostly from her current album Let it Die. Leslie Feist's penetrating, sensual voice was at once powerful and timid. And while the audience wasn't as responsive to Feist in comparison to the Scene, the reaction should have been expected-where Broken Social Scene plays loud pop-rock with hints of psychedelia, Feist employs a much mellower and more somber sound.

It's difficult to say exactly how many members Broken Social Scene includes-the member list is forever growing and changing. Judging from the performance, it seems there are 10 members, plus varying occasional guests. Most of the musicians have a mad case of wanderlust, playing in other bands as well-such as Feist, Do Make Say Think, Valley of the Giants and Metric-and that seems to be what makes the band tick.