"Tomorrow's music, today" seems to be the motto math-rock futurists Battles, who delivered a set of breathtaking musicality at T In The Park.

The New York based supergroup of sorts are composed of some of the pre-eminent rock musicians working in America today - and boy does it show in a live setting. Battles rip through the bulk of their debut album "Mirrored" with a rare energy, one that seemed to contain every emotion available.

Drummer John Stanier is a one man advert for the demolition of metronomes, such is his grasp of the sinews of Battles' music. Ceaselessly working, exploring the possibilities of the beat, at times this show resembled a techno set rather than a rock 'n' roll show.

With a bigger bag of tricks than Paul Daniels, Battles are at the forefront of musical technology. Breathtaking for fans, but a logistics nightmare for a sound engineer. Sound problems attempted to disrupt the set but Battles, with typical cunning, seemed capable of absorbing the feedback into their sound.

While it's easy to dwell on the more technical aspects of the set and make Battles sound like the college professors of rock, what shouldn't be forgotten is how downright fun and funky this band are. At times recalling the evil, psychotic jazz of "On The Corner" era Miles, or even the dense funk of Fela Kuti, Battles make for an unlikely party band - yet they pull off this roll with some aplomb.

A dense, chaotic set - but one of the weekend's most memorable parties.