While it hurts my soul a bit to suggest any activity Friday night that isn't the Chromeo show at the Rialto, if 80's-inspired R&B isn't your thing, the inside/outside combo of free shows at Congress is a great option for the music-loving Tucsonan.
Inside the club starting at 9 p.m., you can enjoy a tripleheader of local bands with party-rock act Electric Blankets headlining. Also on the bill, Horse Black and White Lhite.
Outside, there's music starting at 5:30 p.m. with Tom Walbank and Roman Barten-Sherman doing their Friday night residency blues thing. Then a special treat, steel guitar wizard Jon Rauhouse brings his band to the patio starting at 7 p.m. Rauhouse has played with a bunch of alt-country luminaries including Neko Case, the Waco Brothers and, as seen above, the Calexico guys. As good as anyone says this guy is, he's actually a little bit better, so if you enjoy country music at all (or just people who are incredibly talented), you should be there for this free concert.
More info on all this stuff at Hotel Congress' page.