Trey Anastasio Band October 31, Brooklyn Bowl.

Trey Anastasio likes spending—and going big during—Halloween in Las Vegas. It’s the only city he and the primary band he fronts, Phish, have chosen twice (1998, 2014) for their legendary Halloween arena shows, where they cover someone else’s album. And he was an active participant during the first two Vegoose festival weekends (2005 and ’06), playing at various times with the Trey Anastasio Band, along with acts like Widespread Panic, Dave Matthews and Phil Lesh.

The six-string samurai dialed it back just a bit for his fifth All Hallows Eve in Sin City, Anastasio and his namesake band settling for two nights at the relatively intimate Brooklyn Bowl sans guests and gimmicks, and no complaints there. Anastasio and his six-piece band stuck to the music—even on October 31, despite the festive vibe and costume parade offstage. The musicians seemed to be observing something else: Anastasio’s 10th solo album, Paper Wheels, released to acclaim just the day before.

Generally speaking, the new record sounds like a celebration of the 1970s, and that’s what most of the three-hour, mostly improvisational show (with a 20-minute intermission) evoked as well, with the versatile Anastasio and his custom guitar summonsing the blues, R&B and even Steely Dan-esque jazz-rock (the latter represented exuberantly by “Bounce”). TAB’s remarkable three-member horn section also strengthened forays into funk (heard throughout the night, especially during a dynamic “Last Tube”), progressive jazz (James Casey’s primal sax run during “Burlap Sack and Pumps”), reggae (Toots & the Maytals’ “Sweet and Dandy”) and even zydeco (Chris Ardoin and Double Clutchin’s “Acting the Devil”).

Phish material surfaced with ace versions of “First Tube” and “Alaska,” with chestnuts “You Enjoy Myself” and “Cavern” lyrically referenced during an “old world” version of Guy Lombardo’s “Enjoy Yourself (It’s Later Than You Think).” Another interesting cover moment: Anastasio running a fiddle over his guitar like an e-bow during the Charlie Daniels Band’s “The Devil Went Down to Georgia.” And then there was the “MacArthur Park” encore, which was more Donna Summer than Jimmy Webb thanks to trumpeter Jennifer Hartswick’s soaring vocals, and the mini-chorus line of showgirls that joined the band. For all the treats Anastasio bestowed this Halloween, he saved his one trick for the end.