As a practicing psychiatrist, Denny Zeitlin explores the maze of the human mind. As a pianist, he has explored musical mazes as a soloist and in trio collaborations, proving time and again that there’s an orchestra inside his instrument. Now, going solo in front of a live audience on his aptly titled Labyrinth, Zeitlin takes us through every conceivable twist and turn, from the spectacular opening “Footprints” (apparently you do not need Wayne Shorter to give this starpower) to the delicate “They Say It’s Wonderful” to the rambunctious “Lazy Bird” to the majestic “Dancing in the Dark.” It’s the original title track that perhaps best displays Zeitlin’s somewhat quirky, “labyrinthine” mind and heart at work. First recorded in the 60s with Charlie Haden and Jerry Granelli, Zeitlin sought to “give the listener a sense of what it is like to be in a labyrinth—the mystery of it.” And indeed, with his theme and subsequent free improvisation, he leads our ears through dark tunnels, dodging obstacles, quickly shifting direction, quietly pondering the next move before thundering down the next alley. There are moments of gay swing, pounding cascades, roiling caldrons of lava, delicate tinkling, and some zingy effects as Zeitlin’s goes under the hood to find secret underground passages, to explore “the multi-timbral possibilities inside the piano.” It’s a devilish delight that focuses on the multi-timbral possibilities inside Denny Zeitlin.