Seventeen Evergreen, Hoxton Bar And Grill, London

Given its place as the epicentre of hippie culture, you would expect San Francisco to produce a chill-out act of note. It has now, and they're a duo called Seventeen Evergreen, who prove their laid-back credentials with a rendition of their heady, intoxicating "Music is the Wine", which bridges the gap between the Pink Floyd of Syd Barrett and Wire's forgotten psychedelic single "Map Reference".

These are mighty touchstones and reference points, but the multi-instrumentalists and singers Caleb Pate and Nephi Evans, aided and abetted for live work by Jodi Durst on bass, Sam Coe on drums and Brandon Proctor on wurlitzer and sampler, seduce and engage the curious at their first UK appearance.

Life Embarrasses Me On Planet Earth, Seventeen Evergreen's impressive debut, has already earned them airplay and sessions on 6music, XFM and Radio 1, and the floaty, dreamy "Haven't Been Yourself" could be Air at their most anodyne if it weren't for Pate's falsetto, the unison guitar glides and some particularly perceptive lyrics inspired by a schizophrenic neighbour of theirs in Frisco.

Living as they do between a Deaf Senior Citizens' residence and an Alcoholics Anonymous centre, there is no shortage of inspiration, but the duo don't just look outside their window or down into the gutter, they also look up to the stars. The blissed-out "Constellation" has the black-haired Pate whispering "Your constellation lies out there somewhere, where the constellation lies, that's where I want to be" over a delightful electric piano motif, while "Lunar One", the pastoral title track of their forthcoming EP, could be Radiohead's "High And Dry" for the new millennium.

But, just when you think you have them sussed, Seventeen Evergreen turn out to have more breadth of style and vision than you'd expect. The hypnotic "Sufferbus", sung by the bearded Evans, has elements of Can's Krautrock, and Pate comes over all Flaming Lips by waving a glow-in-the-dark gadget.

The percussive electronica of the set closer, "Burn The Fruit", also from the Lunar One EP, proves to be even more bewitching with its "Evaporate, Syncopate" mantra and extended outro ripples. As Spiritualized once said, ladies and gentlemen, we are floating in space.

Seventeen Evergreen play The Windmill, London SW2 (020-8671 0700) tonight