We've got the exclusive premiere of the latest from Rap Class, AKA local producer and DJ John Kammerle. "Jenny @ Da Pie Shop" is Rap Class' contribution to the upcoming Gem Drops Four compilation album from local electronic/experimental label Dropping Gems (which you can pre-order here). Building off of a series of samples, Rap Class has created a 3D tunnel of sound, as quick staccato shards and incessant beats move continually toward the listener. Gem Drops Four will celebrate its release with a free daytime party on Sunday, August 10 at the White Owl Social Club. There's more info, and the full roster of performers, here.

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Here's Eidolons' "The Magic of Oil Painting," an off-kilter tune with jigsaw turns and unconventional pop anchors. It comes from their brand-new EP The Big Yellow Shirt, which the band is releasing in tandem with another EP, Hard Hang in a Deep Country. Do two EPs make one LP? In this case, maybe so, as Eidolons are celebrating the release of both with a show at Mississippi Studios this Wednesday, July 30. Meanwhile, take a listen to the tangled turns of "The Magic of Oil Painting," which drops you out in the middle of nowhere, then slowly starts to sketch in the details of the map.

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Horse Feathers announced their upcoming record, So It Is with Us, on NPR today—it comes out October 21 on Kill Rock Stars, the band's longtime home. Take a listen to first single "Violently Wild," which doesn't break Horse Feathers' chamber-folk mold but casts in in an upbeat light, one that's almost danceable. The album marks a conscious shift away from sadder material, the band's frontman Justin Ringle states. "I had grown weary of talking to people after shows who said that my last record 'helped them through their divorce.' I have always been flattered by that sort of thing, but I realized what I wanted to hear was how my last record helped them 'have a great weekend.' If you have heard any of my previous records you will realize that this transformation from 'divorce' band to 'weekend' band would be a tall order. And it was! I wouldn’t say we’ve become a 'party band' overnight, but I certainly tried to change things a bit."

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Witch Mountain also had a track posted on NPR recently—the leadoff track from their upcoming album Mobile of Angels, which comes out on Profound Lore on September 30. "Psycho Animundi" is a near-nine-minute avalanche in slow motion, starting steadily and gaining unstoppable mass over boulder-like riffs and Uta Plotkin's vocals. There's a freeze-frame three minutes in, and again a minute and 45 seconds later, before the song shifts into a subdued bridge, which comes around to conclude the song on an uneasy but seductive note.

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Dogheart is the band formed from the remnants of Portland band Pheasant, and here's their first released bit of music, the slow-burning "Dead Love," which will be on their upcoming album, recorded with Jeff Bond at the Odditorium and due out in November (at least according to their Kickstarter). You don't have to wait that long to hear more Dogheart, however, as the band is playing tomorrow night at Mississippi Studios, opening for the Woolen Men and Cool Ghouls.

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Castanets has another new song on the "world wide web," the lurching, avant-garde "My Girl Comes to the City." The track will appear on the new Castanets album, Decimation Blues, which comes out August 19 on Asthmatic Kitty. This is a weird one, incorporating glitch sounds, barroom piano, and schizophrenic voices in the background. Castanets performs a release show on September 4 at the Doug Fir.

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I posted a new Hemingway song on the blog last week, but if you missed it, it's well worth checking out. That song, "No Hard Feelings," comes from Hemingway's upcoming album, Pretend to Care, which will be out September 30 on 6131 Records, and here's the album's opening track, "Constellations." On both tunes, Hemingway combine traditional power pop with new emo (I know, but what else do you want to call it?) for a loud, buzzy, non-denominational rock song. Great stuff.