Here's a collection to savour, even if guitars aren't your thing, or indeed spontaneous improvisation leaves you feeling, well, challenged. These are simply 15 songs capturing two people playing with and to each other and as such it's a simple pleasure. OK, the idea of ‘simple’ is up for grabs, as is what we mean by ‘pleasure’, but you get my drift. We're spoiled in that Kaiser has cherry-picked from nearly 40 years of recordings, from which he sets the tone with 98 seconds of Kaiser in concert with Derek Bailey in provoking yet hilarious mood. Bailey was an early hero of Kaiser's and Bailey's approach underwrites many of these cuts. But Kaiser has many musical friends and heroes: the lustrous melancholy of the sitar/slide sound of Bhattacharya on ‘The Distant Thunder’ couldn't be further from Bailey, while the epic scale and effects maelstrom of ‘The Very Last of the Very Few’ remind us what an outrageous axe man Bill Frisell was 30-plus years ago. Other standouts include the metal blooze mayhem of ‘A Mighty Fire’ with Reiersrud, but every track has its own voice, it's own unique, never to be repeated spell. If jazz is the music of surprise, then park your ears here.