Vijay Iyer & Rudresh Mahanthappa: Raw Materials

The two play with one mind throughout. Tempos adjust organically and microscopically moment to moment, producing a sense of rubato time, despite the music's rhythmic rigor. Repeated listenings exponentially undermine initial impressions: the music remains limpidly beautiful, but there's an uncommon overall sense of emotional ambiguity that's uncommonly unnerving. Moreover, this music, to its credit, does not work as background entertainment, despite its loveliness—there's too much grief, too little unqualified release.

The six-note theme phrase of Iyer's "All the Names recalls "Experience from his 2005 CD Reimagining, mixing sweetness and heartbreak. As always with Iyer's piano work, there's a total absence of traditional comping, so that his and Mahanthappa's solos are divided and marked more by emphasis and volume than traditional constructs of lead melody and supporting accompaniment. Mahanthappa's "Forgotten System is like bop in its intricacy and speed, and unlike it in every other respect—there's no lack of intensity, but no standard climax or resolution either as the two musicians characteristically generate autonomous, simultaneous melody lines.

Much of this music has a through-composed feel, or at least a good portion of composed sections: Iyer's piano passages on the elegant "Remembrance are really more sonata-like than anything out of the jazz vernacular, and Mahanthappa's coiled, babbling lines on Iyer's "Frontlash veer into shiver-inducing unison phrases with Iyer, separate, then converge again. A close listen reveals something frightening and cruelly relentless about "Frontlash : the musicians' phrases feel as repetitively matter-of-fact as a list of war casualties, and just as imbued with the same grim, mundane horror.

This may not be the ideal starting point for listeners who are just discovering these musicians—Iyer's Reimagining or Mahanthappa's Mother Tongue might be an easier initial taste. But very few recordings reveal such a richness or complexity of emotion—and continue to reveal more of these qualities listen after listen.

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