Slide guitar icon Sonny Landreth performs tonight at Oakley's 20th Century Theater with locals Monkeytonk opening things up at 8 p.m. (doors open at 7). Tickets are $22. Our Brian Baker says, "Landreth’s swampy yet razor sharp slide guitar riffs are as singularly identifiable as a fingerprint and as beautifully impressionistic as a Monet watercolor," while none other than Eric Clapton said Landreth is "probably the most underestimated musician on the planet and also is probably one of the most advanced." (Read more from Brian about Sonny here.)Landreth is touring behind Elemental Journey, the guitarist's first all-instrumental album. Check out his guitar-duet with Joe Satriani, "Gaia Tribe," below.• Catchy Indie Pop crew Wintersleep plays a free show tonight at MOTR Pub in Over-the-Rhine. The Canadian rockers (who, in 2008, won a Juno Award, which I believe is like a Grammy except made of Canadian bacon) just two days ago released their new album, Hello Hum. The show starts around 10 p.m. with local Pop/Rock foursome Damn It To Hell, which recently put out its first release (click here to listen).Here's Wintersleep playing the new album track "Nothing Is Anything (Without You)."• On Thursdays, Fountain Square presents two different concert series specials. At noon, it's Acoustic Thursdays for downtown lunchers and anyone else who wants to hear some good music sans electricity (well, they do use SOME electricity; PAs usually require it, unless it's an old fashion wheel-and-crank system). Today join Lauren Houston and Jim Pross on the Square at lunchtimeThen, at 7 p.m., it's time for the popular Salsa on the Square. Dance the night away with Stacie Sandoval's Grupo Tumbao. And don't worry if your moves are a little rusty; dance instructors will be on hand to lend their support to your two left feet.Click here for even more live music events tonight in Greater Cincinnati.