A polished saxophone tone over gritty distorted guitar and heavily metered grooves is the formula, if there is one, for Chris Potter's Underground. Saxophonist AJ Kluth's newest release shows, at times, many similarities to his elder in jazz. At Kluth's age, it's difficult to escape the influence of Potter, one of today's main tenor saxophone heroes. But at 29 years old, he has assembled a formidable ensemble capable of both being inspired by and setting itself apart from such trend-setting groups. Kluth only contributes three original compositions to the record, but they stand out as the most cohesive, best executed, and most attractive tunes of the lot, even over their arrangements of Chick Corea's uptempo "Litha" and Thom Yorke's "Atoms For Peace." Unison melody with guitar and saxophone is a trend in almost every piece. The melody of Ascher's composition "Sleeping" contains this technique, and although its melodic arch is beautiful and the repetition is entrancing, by track 8 the technique is dangerously close to becoming old hat.