Just released: Parallelograms, a departure from the usual Ad Hoc collages of sound fragments and a return to classical DJing, albeit with a digital bent.

The first in a series of Ad Hoc DJ mixes, Parallelograms covers unintentionally international terrain in recent house and techno, with tracks hailing from Stockholm, Santiago, Berlin, Marseille, Valencia, Bremen, Chemnitz, London and Paris. But perhaps most extraordinary is Chris Watson's subaquatic recording of the creaking movement of the Vatnajökull glacier - from Iceland, via Watson's home in Newcastle.