Saturday, April 7

The awesome drum-and-cello duo Quad tops a four-band bill at Empire (575 Congress St., Portland), with Portland post-rockers This World Has Bees, instru-metalists Wess Meets West, and Pray For Sound. Doors at 9 p.m. Tix: $6 (21+). 558-2279. portlandempire.com. And at Portland House of Music (25 Temple St.), the Superhero Lady Armwrestlers of Portland (SLAP) throw down in celebration of National Beer Day at 9 p.m. Tix: $6-$8 (21+). 805-0134. portlandhouseofmusic.com.