Ivo Perelman strengthens his claim to the title of fearless adventurous duo partner with this latest offering. Having done many sessions with important contemporary titans such as pianist Matthew Shipp and Joe Morris, here he joins forces with guitarist Elliot Sharp on what is an intriguing, and challenging at times, mesmerising session.

While the 29-minute duration of ‘One’ sees the pair climb to the level of epic performance of Coltranian-Braxtonian proportions, they have both the ability and chemistry to ensure that the interest is sustained, even if the endeavour has occasional moments of stasis.

The conversational dynamic of the music is rich from the outset, yet the interest lies, as has been the case with so much of Perelman's work, in an ability to make the tangential consequential, to give dramatic weight to a single note or harmony that entangles then untangles from a thicket of sound.

While free improvisation and experimentalism are entirely appropriate terms for the material Perelman and Sharp evoke, by accident or design, a profound sense of blues and folk in their most ancestral, pre-codified guises. The deliciously countrified strain of many of Sharp's lines is a major draw in the music, as his 8-string guitar takes him from bass to banjo to mandolin and harp, with microtonal lines wafting into the ether while Perelman shows equal timbral verve.

The pre and post-war saxophone models are still there but his quite withering, steam-heat altissimo, where the notes are like stark perforations in the air, is dazzling, as are the passing references to the percussion instruments of his Brazilian homeland such as cuica and pandheiro. The two players create an aural landscape that is beguilingly rugged as well as refined, pushing at personal limits as well as the confines of what a horn and guitar can produce.

Perelman's discography increases apace but he continues to choose collaborators with care, and in Sharp he has a kindred spirit who is willing to stimulate and instigate with the same outré energy.