A sort of seasonal addendum to his Lupercalia album (Brumalia being the Roman festival of winter), this seven-track EP takes that album's homesick plea for fellowship, "Together", and gives it a festive slant by following it with "Time of Year", a like-minded song for absent friends at Christmas, especially the military.

Tonight’s set consists mostly of trance-like drum 'n' bass tracks, accompanied by over-zealous, fit-inducing strobe lighting and the kind of heavy, reverberating bass that makes you feel like someone’s blowing raspberries on your intestines. But James Blake’s attention to detail and extensive repertoire mean he appeals to more than just fans of heavy bass lines and break beats.

This programme of Steve Reich pieces has a satisfying unity due to the driving train rhythms that underpin all three compositions.

The 10th anniversary of the 9/11 attacks on the US is marked by composer Steve Reich with a piece performed by the Kronos Quartet, triple-tracked, and incorporating recordings of the words of air traffic controllers on duty at the time. Haunting and harrowing, the uncomprehending first reactions are combined with a score both alarming and consoling. Also here, Mallet Quartet (2009) and Dance Patterns (2002), but it is WTC 9/11 which packs the most powerful punch.

On 19 September, Kieran Hebden, operating under his usual moniker Four Tet, will release a Fabriclive mix record (the 59th in the series).

Unlike previous Vetiver albums, for The Errant Charm, songwriter Andy Cabic entered the studio with vague ideas rather than finished songs, and it shows.

An episode of cannibalistic sex is in one way tonight's gruesome climax – Béatrice Dalle chomping on an unfortunate lover – with Tindersticks carrying on in their usual hangdog manner. You realise then how intimate their relationship with the French film director Claire Denis is. They find the gore completely natural.

Who would have thought that a book about nothing could be so rich, fascinating and enjoyable? Not that audiences for John Cage's notorious work 4 minutes 33 seconds hear nothing. Quite the reverse. As Gann points out, "By the time Cage died most critics fully understood that the listener was supposed to appreciate the sounds of the environment in which the piece was performed."

Tipping the scales at around 3kg, this is one of the heavier box sets around, despite containing just five albums.

How tidy is this? Ambient-house collective enters studio with Pink Floyd guitarist and emerges with...Echoes II?

Alex Paterson has every right to sound slightly tetchy as he points out: "You've ignored us for years, but suddenly everyone's interested just because of who we're working with." His ambient-house pioneers The Orb have been treated as whimsical irrelevances for much of their career; now they're getting to work with one of their heroes and the world is sitting up and listening. Paterson's latest album is Metallic Spheres, by The Orb featuring David Gilmour. The chill-out mavens have been paying tribute to Pink Floyd since their 1991 debut album The Orb's Adventures Beyond the Ultraworld, with its Battersea Power Station cover and a track called "Back Side of the Moon". Now they have worked the guitarist and vocalist's precise, bluesy style into their own dubby excursions.