Just the other day, John Vettese was highlighting Arc In Round‘s long-in-the-making debut EP, Diagonal Fields, in his Philly Local Philes. And we see no reason not to hype tonight’s EP-release show at Johnny Brenda’s as well. After all, the noise-pop quartet has taken its sweet time in releasing its debut; as ringleader (and local producer/engineer) Jeff Zeigler mentioned in a recent interview with The Deli, he’s a pretty busy guy, after all. Thankfully, he’ll be focused less on making other bands sound great and more on Arc In Round in the next few months; the new EP comes in advance of a proper full-length scheduled for release in 2011, which will be followed by a tour with WXPN favorite SOARS. (“Spirit,” the lead track off Diagonal Fields, is posted below; you can find the other songs here.) The only bummer about tonight’s show is that local quartet Post Post—originally slated to open—recently broke up, as reported by Make Major Moves earlier this week. Arc In Round performs with Golden Ages and Tadoma at 9 p.m. at Johnny Brenda’s; tickets to the 21+ show are $10.