Nick Millevoi’s way with intricate jazz-rock has spawned a solo career and the consistently impressive power trio Many Arms with bandmates John Deblase and Ricardo Lagomasino, as well as the numerous other projects that his magical fingers have touched. Recently welcomed into the Tzadik Records stable, the patchwork aesthetic of this group is an experimental gem. They play an entrancing combination of punk and free jazz, harnessing the gnashing relentless forward motion of the former to the wild unpredictability of the latter; however disjointed their compositions get, such as the appropriately-writhing “Snakes In The Grass,” though, the rapport of these three musicians shines through, with a clarity to each member’s contribution. Their show tonight at the Rotunda is free, and they’ll be teaming up with master tenor saxophonist Colin Fisher to perform a set of new material. Fisher will also be opening the evening with a solo guitar set of his own. The Rotunda, 4014 Walnut St., 8pm, Free, All Ages – Alyssa Greenberg