[Caution: jazz people have potty mouths–ed.]

Ordinarily, the “supergroup” label is good enough reason to run as far and as fast as possible, but in the case of Spectrum Road (at Jazz Alley June 21 to 24; tickets), it’s cause for celebration.

With a lineup of Jack “Motherfucking” Bruce (Cream), Vernon “Motherfucking” Reid (Living Colour), Cindy “Motherfucking” Blackman-Santana (Lenny Kravitz, Santana), and John “Motherfucking” Medeski (Medeski, Martin & Wood), that’s four than enough reason to experience the band, which was conceived as a tribute to the late great drummer Tony Williams and his seminal band Lifetime.

The real surprise of Spectrum Road, however, is that the group so effortlessly finds its own identity and cohesive sound in Williams’ music, coming across not as a showcase for four insanely talented players but as a deftly executed group tribute to a beloved influence. Their sets last year at Jazz Alley were barn burners of the once-in-a-lifetime variety, so their return for four nights is very welcome news.

If you’re looking for a nice show at Jazz Alley to enjoy the fish special and tap your toes to some standards, you’re (thankfully) out of luck.

If you’re in the mood to have your face melted and your ears burned off by four of the best ever, this is one not to miss.