This latest free improv duo exploration from husband and wife improvisers saxist Ingrid Laubrock and drummer Tom Rainey is a remedy to ward off complacency and provides once again via Laubrock's supreme command of her instrument in the lead a wake-up call.

The music is disciplined, challenging, not showbiz at all or built up via a formula that gets approved by the overpaid suits and their many flunkeys, Laubrock is maddeningly prolific so it is pretty impossible to keep up with all her output.

Rainey reminds me a little of Paul Motian, sometimes a drummer like Steve Dakiz Davis flits into view too which is also cheering and sometimes too you think of Rashied Ali in lockstep with Coltrane although Rainey's approach isn't multi-directional all the time. Together they know how to pace their improvisations perfectly. Laubrock can be Chris Potter-like when she wants to be perhaps to some against the odds. And yet the German born player can also strip the instrument back to something of a primal scream and be as out there as anyone who resides on the outer limits of adventure.

Succinct - all the pieces are under 6 minutes, some weighing in at a lot less - and all amount to as coherent an avant statement to come along in many months certainly the last duo that moved us in this domain was Tim Berne and Gregg Belisle-Chi's marvellous Mars. Echo that emotion, sock it to the man - free your minds and get the memo jazz isn't supposed to be slick and only for yuppies. These two not just got that missive long ago but wrote the book on it and continue to add new appendices and footnotes all these years on in their fascinating work together.