(Crystal Ballroom, 1332 W Burnside) Do you remember Calobo? Through the '90s, the roots-rock band toured up and down the West Coast and sold 100,000 records without the help of an outside label. They broke up in 2001, but they're reuniting for three Northwest shows, including one at their old Portland stomping ground, the Crystal Ballroom. It's worth mentioning the reunion for its own merits, but if you don't remember Calobo, perhaps you know some of the famous Portland bands that descended from it: Bassist Nate Query and keyboardist Jenny Conlee went on to join the Decemberists and Black Prairie, and guitarist/mandolinist/vocalist Caleb Klauder is a lynchpin of Foghorn Stringband and the Caleb Klauder Country Band. Calobo—rounded out by guitarist/vocalist David Andrews, drummer Brian Bucolo, guitarist Kenneth Erlick, and vocalist Michelle Van Kleef—has an immaculate pedigree, and tonight's a not-to-be-repeated-anytime-soon opportunity for bereft fans to revisit one of the most important Oregon bands of the '90s. Chances are, Calobo will earn some new fans as well. NED LANNAMANN

(Various locations) Here's a hilarious idea come to life: Pack the slowpoke Portland Streetcar with 16 local bands. Viola! A $1, all-ages, hop-on, hop-off roving music festival! Who cares if it takes 20 minutes to go 10 blocks? You've got Sun Angle, Jeffrey Jerusalem, and over a dozen others to keep you entertained during the second annual Streetcar Mobile Music Fest. SARAH MIRK

(Backspace, 115 NW 5th & Someday Lounge, 125 NW 5th) Something pretty exciting happens when two people who have dedicated themselves to cultivating the Portland music scene decide to throw a party. Arya Imig (booker, writer, band manager) is having a birthday and Casey Jarman is gracefully stepping down from his meaningful and influential post at the music editor desk at the other Portland weekly. As they get all sappy celebrating another year of change and things to come, I will be reaping the benefits of their accumulated knowledge and effort, in the form of tonight's really rad, two-venue show. Illmaculate & G_Force and Point Juncture, WA will each play their fan-favorite albums, The Green Tape and Heart to Elk, from start to finish, and the Shaky Hands play a reunion show! A must-see event for anyone who wants a recap of what's been happening in local music over the last few years. ROCHELLE HUNTER

(Mississippi Studios, 3939 N Mississippi) The music of ethereal doom unit Worm Ouroboros moves at a glacial pace; and even though it won't necessarily level listeners with merciless riffs or vocals that sound like they come from the bowels of Hades, there's still something dark and eerie about the Bay Area trio's second LP, Come the Thaw. A lot of that has to do with core members Jessica Way and Lorraine Rath, whose vocals float over guitars that are more often spartan and elegant than caked in sludge. The band helps kick off the three-night Fall into Darkness fest, which assembles heavies from all over the country. Also playing tonight's free show are locals Aranya (featuring Witch Mountain vocalist Uta Plotkin), Salt Lake doomsters SubRosa, and Wild Hunt from the East Bay. Bone-crushing—minus the broken bones. MARK LORE Also see My, What a Busy Week!

(Blue Diamond, 2016 NE Sandy) Blue Diamond typically hosts free live music on their cramped corner stage Friday nights. Rarely, however, is it as engaging as when the legendary Lloyd Allen Sr. and his revolving-cast backing band sets up. Veterans of Portland's Waterfront Blues Festival are no doubt in the know regarding Allen Sr., a charming, smartly dressed blues practitioner with over six decades of performance time logged in and around Portland. He began his performance career at age 13 with the Vibratones in the '50s at yesteryear hotspots like Paul's Paradise, then later as one-quarter of '00s blues foursome the Cannonballs. Allen's guitar and vocal chops have yielded opening slots for the likes of B.B. King, Dinah Washington, and more. You can find out why for free this Friday; don't be surprised if you get a tableside visit by Allen Sr. himself. RYAN J. PRADO

(Doug Fir, 830 E Burnside) I first heard the Maldives in Brooklyn, at a time when my heart ached for the Pacific Northwest. It was just a few weeks short of three years ago, and they were buried in the middle of a CMJ showcase, not a situation that facilitates being noticed. But I found that the Maldives sounded like my homesickness (and not at all like an atoll in the Indian Ocean). They reminded me of the Band—I thought that frontman Jason Dodson even looked like young Levon Helm—and I was impressed by the sound and energy of their many members. Steeped in the banjo-driven melancholy of the Northwest, the Maldives nevertheless totally rock, especially live. Muscle for the Wing, out this month, showcases their skill as tellers of big, sad tales, as well as the maturity and timelessness of their variety of roots rock. REBECCA WILSON

(East End, 203 SE Grand) Hey, listen up! Zoobombs—who've been around since 1994—are coming all the way from Tokyo to play for you at ye olde East End. Their bluesy experimental punk is heavily influenced by Jon Spencer Blues Explosion, and also by vintage Sonic Youth. They've opened for Jon Spencer, in fact, and the Flaming Lips, too. Zoobombs don't use setlists, and bring an energetic, unpredictable chaos to their live sets. They know what to do, and now they just need you. KELLY O