David Vandervelde guests on this track. It's ~16 minutes long and instead of listening here you can just download it for free if you want.

From the website:

Winter in Chicago is humbling. Subzero winds and impossible snowfalls lead even the best of us to booze, fish fries, and B movies on VHS. And when Dave Vandervelde started crashing on the couch at the Moon Tower there was plenty of all that. But there was also this: an epic Saturday jam, mics hot in the frigid garage, Dave joining up with the Moon boys for hours of meandering, experimenting, and mind-expanding. A year, 300 overdubs, and hours of editing later, that psychedelic Saturday was chiseled, bent and fired into this Psychedelic Saturday.

This is the kind of psychedelia I love: loud, noisy, with swaths of swirling guitars and keyboards, freak out sections and moments where you feel like you're struggling through the haze to hold onto a solid groove that just barely alludes you under the surface. Where British psychedelia in the 70's was either sunflower-infused tongue-in-cheek drug pop, or blues influenced darkness, American psychedelia was all about being a loud fuckin' acid trip. There's no bad vibes, but there's no pure sunshine here either. It's just introspective, you know... you know... man... it's just about the music, you know... the music, how it flows, man... and boy does it flow...

This is, of course, another Rock Proper release.