It pays off to check in with Welterweight every so often, since frontman and songwriter Doug Cowan pulls fresh pop-rock gems from his sleeves with some regularity, so chances are there’s a bunch you haven’t heard yet. They’re at the Dogfish Bar and Grille (128 Free St., Portland) at 8 p.m. No cover (all ages). 772-5483. thedogfishcompany.com.