GRIME The British easily adopted American house music as though it were their own, but it took them a bit longer to get a grip on hip-hop. In the last few years, grime has burst out of the housing projects street culture and onto the airwaves, first through pirate-radio live broadcasts and now on major labels. While it resembles hip-hop, it's a spin-off of U.K. garage, a hyperactive version of drum 'n' bass. Combining jungle production with hip-hop attitude, Jamaican dancehall-style MCs and raw electronic sounds, grime is a sensation in the U.K. and in hipster circles in the U.S., but not yet something easy to find in clubs or record shops. Which makes sense, considering its vicious tempos were designed to make it hard to dance to, thereby keeping it underground. Grime culture subsisted on pirate radio and DVDs of live sets sold on the streets during its genesis. But in 2005, many of the big names have released acclaimed debuts overseas, and grime's biggest female star, Lady Sovereign, is poised to drop her solo album stateside on Island Records. Events: Grime!, first Mondays monthly at Lava (859 N Damen Ave, 773-772-3355); Scared to Dance, second Thursdays monthly at Liar's Club (1655 W Fullerton Ave, 773-665-1110) Promoters: The Opaque Project DJs: Johnny Love, Atomly, Ian Hicks, Autobot Artists: Lady Sovereign, Kano, Wiley/Roll Deep Crew, Dizzee Rascal Records: Run the Road Volume Two CD/DVD drops January 24, 2006, on Vice; Lady Sovereign "9 to 5" CD single; Roll Deep, In at the Deep End (import Relentless); Kano, Home Sweet Home (import WEA) BAILE FUNK Baile funk isn't really funky at all, in the musical sense of the word. It's more closely related to the Miami bass of 2 Live Crew, which landed in Rio de Janeiro in the '80s and mutated over time on that city's north side. Locals added rapping in street-lingo Portuguese, and traditional melodies to thick drum-machine beats. The result: repetitious, gritty, working-class party music that's livelier than anything else going. In Rio, baile funk is the sound of the favelas (slums). Every weekend, hundreds of giant balls (bailes) are held in the shantytowns and downtown clubs, where the bass rumbles tens of thousands of partiers. It's also real gangsta music: Gunplay at funk parties is not uncommon. Fernando Luis Mattos da Matta (DJ Marlboro) is considered the godfather of the scene, and he's produced much of the baile music, which is rarely released on CD in Brazil. Relatively few baile funk records have ever been pressed, either, as Brazilian vinyl is notoriously shoddy. So DJs like Marlboro are more likely to tote minidiscs of their favorite tracks around. There are a few good mix-CDs and compilations on the racks right now. Super DJ of the moment, Philadelphia's Wesley Pentz, a.k.a. Diplo, has probably garnered the most ink for bringing the homegrown party music of Rio to hipsters, bloggers, DJs and one London-born Sri Lankan rapper (M.I.A.). Diplo's talent for welding together everything from Brazilian booty beats to original riot-grrrl punk is exemplified on his upcoming Fabric mix-CD, and he's reportedly making a documentary of the scene this year. Events: We don't know of any exclusively baile funk parties in Chicago, but the more eclectic and worldly the DJs, the more likely it is they'll sneak baile funk into their sets. Events: Scared to Dance, second Thursdays monthly at Liar's Club Venue: Funky Buddha Lounge (728 W Grand Ave, 312-666-1695) DJs: Rene and Jen Booty at Funky Buddha Artists: Philly's Diplo is the U.S. welcoming committee for baile. DJ Marlboro comes to Chicago October 28 and 29, at Sonotheque and the MCA. Records: Slum Dunk Presents: Funk Carioca, mixed by Tetine and the Brazilian Beats series (Mr. Bongo, U.K.); Favela On Blast: Rio Baile Funk 04 (Hollertronix) mixed by Diplo; Rio Baile Funk: Favela Booty Beats (Essay Recordings). Dusty Groove (1120 N Ashland Ave, 773-342-5800) also stocks Colors: Rio Funk. BOOTY HOUSE Closer to home, the sound on the street and at South Side house parties is booty. Booty house occupies fertile region that lies somewhere between hip-hop, Miami bass and straight-up house music. You're more likely to hear it booming from cars, boomboxes and apartments than in clubs. Or you'll notice closely related genres surfacing: Booty bass was recently harnessed by Missy Elliott on her "Lose Control" single and ghetto tech peaked a few years ago with Detroit's DJ Assault, who blended Detroit electro and booty bass in strip club-inspired tracks like "Ass 'n' Titties." Chicago DJs like Major Taylor are playing the heck out of Baltimore's triple-X anthems like Spank Rock's "Put that Pussy on Me." But Chicago sports some homegrown producers of its own flavor, known as ghetto house, which can be just as nasty. DJ Funk of "Work that Body" fame has resurfaced recently, spins around town, and has a new album on the way. Most locals stick to house parties. Shut down the PC part of your brain and bounce. Events: Scared to Dance monthly at Liar's Club, Mamby on Wednesdays at Moonshine (1824 W Division St, 773-862-8686), secret house parties DJs: DJ Funk, Johnny Love, Major Taylor, DJ Pharris Artists: DJ Assault, DJ Funk, DJ Slugo, Scottie B., Sixth Sense Records: DJ Assault, Off the Chain for the Y2K; Boogaloo Michael Boyer, Ghetto House Booty Tracks. Other records available at Gramaphone Records (2843 N Clark St, 773-472-3683) and Hot Jams Record Store (4814 S Pulaski Rd, 773-581-5267).