I love the psychedelic rock ‘n’ roll that eventually morphed into prog: the classic stuff made awesome by heroic guitar solos and ego-consumed lead singers. The last few decades it’s been pretty scarce. But the Harvard band L.A. Jeff is bringing it back with the deliriously jam-bandy Holidaze Inn. I’m guessing if you checked these guys’ dorm rooms you’d find at least a few Dark Side of the Moon t-shirts stuffed in their drawers.

The album’s stoner-joke title and bright, drippy artwork signal this one’s going to be trippy. The instruments meld together in basic rhythm before spiraling off to follow their own solo inspirations. Almost every song features a guitar solo that can be characterized as “rad” or—even better—“far out.” Guitarists Nicolas Schwalbe and Jero Turncote lean heavily on phasers and flangers to craft the swooping, starship tones that make you feel all cosmic when you listen to your favorite albums. Sometimes shimmering/sometimes fuzzy rhythm guitar melts beneath the bold, shifting solos and riffs.

Nico Schwalbe on lead vocals is so the man. With his strutting confidence and stripped-down, gravelly delivery, he could totally kick it with Iggy or Bowie. Lyrically, the songs are about those classic ’60s obsessions—which have also been obsessions for every decade since—sex and drugs. On “Creeper,” Scwalbe lasciviously entreats, “Come on now baby/Just to get loose/Shake that little booty, Put it to good use.” On “Tripper” he sounds spacier: “I wait for the pill to reach my brain/And suddenly I’m happy and I’m happy again.” Not exactly subtle, but effective.

There’s homage happening on Holidaze Inn. On “Greaser,” harmonicas, ’50s-style bouncy guitar plucking and stuttering Joe Strummer vocals evoke The Clash’s “Brand New Cadillac.” The freeform psychedelic jamminess of “Reducer” is a throwback to Pink Floyd. But the band also weaves in its own distinctive touches, like the loose, off-key, saturated riff on “Outlier” and the twangy acoustic soloing over droning chords on “Lover.” Those moments when L.A. Jeff finds its own voice are the finest on Holidaze.

Listening to this band is like playing your old record collection and finding a bunch of fresh tracks magically come to life. It makes me nostalgic for a simpler, groovier time. Until I get to the final track anyway. On “Voyager (Le Voyageur)” the vocalist recites the French translation of a German text by the philosopher Nietzche against a background of psychedelic sound. At which point I remember: oh, right. These guys are from Harvard.