Dutch pianist Guus Janssen is the most purely jazz player on the entire scene in Amsterdam. He can improvise of the cuff with the best of them, but his preferred mode of operation is in solo or trio settings where he is exploring, in much the same way Bud Powell did in his heyday, the underpinnings of jazz structure and harmony.

On this trio date with his brother Wim on drums and Ernst Glerum on bass, Janssen moves through 12 compositions with the speed of sheer sound itself. With his deeply wrought and complex harmonic architectures on tunes like "I Mean" and "Zandersloot," as well as "Mist" and the title track, Janssen creates intervallic pressure points where harmony and counterpoint come together to open the tune up from the inside and then string along what's left of the original melody and explore it for its rhythmic possibilities in the elongated invention of tonal interpolation.

Communication exists in the rhythm section in the subtlest of nuances, where a skittering brush stroke will coax a flurry of trills from Glerum, and an open set of five-note clusters or augmented ninths from Guus, and just as suddenly, the trio is back on the melody and coming full circle on another intervallic jump. This is a remarkable recording, but it only glances across the surface of Janssen's musical mind.