When you’re on the outside looking in, you gotta start somewhere. Last year’s We Are Columbus: Ohio X Southwest showcase was a blip on the radar screen of the massive festivities surrounding Austin’s annual South by Southwest festival. But it was a prosperous blip, with a steady stream of onlookers popping into the tiny Treehouse Pub all night. Now a new lineup is headed back to Texas for round two, hoping to gain a stronger foothold in the music universe. But first the majority of the bands will play a fundraiser for the trip Saturday at Ace of Cups. Among the entertainers: Phantods, Andy Shaw Band, The Floorwalkers, Maza Blaska and more.