It's not often I come out of a gig not wanting to hear any other music. But last night I was so entranced for an entire evening that I didn't want it to wear off. I was at the launch gig for Stevie Jones's Sound of Yell album, and I'd gone with no idea what to expect at all other than that Alasdair told me he was playing hurdygurdy. There were three sets in the evening and it sounded like each was inventing their own musical language, often using vaguely familiar building blocks but putting them together in a quite new and fascinating way. Sacred Paws kicked off and at first I couldn't quite believe there were only two of them: just Telecaster and drums, both playing and singing with what I can only describe as sophisticated naivety. And clearly enjoying it.

Then Nerea Bello came on, eventually sitting down at her Singer sewing machine table to accompany her voice (or should that be voices) with mbira, rice (I think), some glass bowls, a plastic bag, and then eventually finishing the set by wrenching her necklace off and allowing the beads to fall over all of the above, and the floor. Singing in Spanish, Basque and English with a determined focus and command of the stage, by doing often very small things.

I had no idea that Stevie even played the guitar, let alone that he had written an entire album of guitar instrumentals and recorded them with a crack team of improvisers, including Alex Neilson on very fine form, and Pete Nicholson knowing exactly when to make beautiful melodic sounds and when to do something different entirely. And Stevie's music takes what seem like familiar patterns of 70s folk guitar playing, and moves them into perplexing harmonic and structural places so that the whole thing is like a very gentle exploration of the future. I wanted the set to be at least twice as long as it was.

So if you're in London go and see them at the Vortex Jazz Club on Saturday and see if you can figure out what kind of music it is: the Chemikal Underground website suggests 'acoustic psychedelia, folk, jazz, improvisation' but perhaps you can do better. I'm going to listen to the album now and see if it's as great as the gig was.