Six concert pieces by improvising jazz saxophonist Roscoe Mitchell are being released digitally by Mutable Music. Performers include baritone Thomas Buckner, percussionist William Winant, conductor Petr Kotik, and saxophonist Jacob Zimmerman among others, performing tubular bells piece Bells For New Orleans and Nonaah for chamber orchestra, along with four other tracks.

The release, titled Not Yet is available at mutablemusic.com, on CD-R or as a download.

Jazz legend Archie Shepp is asking for donations to put together a new Attica Blues Big Band. The original Attica Blues release (and subsequent big band) commemorated the 1971 Attica prison riot. This 70s iteration was recorded with the financial backing of a major label, but this time around Shepp is recording the music himself, and releasing it on his own Archiball label. He'll be using a group of mostly young French musicians, a total of 26 people including himself.

Shepp's raised just over $4,000 towards a target of $20,000, and there's 11 days on the clock. As per usual, if he doesn't make it, the project doesn't make a penny. Watch the promotional video below.

Every back issue of The Wire is now available to all our subscribers online and via the iPad, iPhone and Android apps. That’s more than 350 issues and 25,000 pages of underground and experimental music history – a unique archive containing issues of the magazine that in some cases have been unavailable for up to three decades.

Up until now, subscribers have only been able to access monthly digital editions of the magazine going back to August 2006 – now they can view and read every issue going back to issue one and summer 1982. The entire archive is searchable, of course, so you can locate any and every article and review ever published by the magazine on specific musicians, groups or genres, or by key critics and contributors.

The Wire archive will be an essential resource for anyone who's into underground music, one that will continue to expand as each new issue of the magazine is added to it.

If you order a print subscription you get automatic access to the digital archive. Digital-only subscriptions are also available. For more details and prices click here.

:zoviet*france: have composed a soundtrack for Auricular, a contemporary dance piece by Surface Area, being performed at Newcastle Baltic's off-site project space, Baltic 39.

Auricular uses sign language and facial expressions to communicate the emotions of three dancers, Molly Hodkinson, Beth Loughran and Nicole Vivien Watson. Three performances take place: one on Friday 28 June at 8pm, and two on Saturday 29 June, 3pm & 8pm. More details on the piece here.

Artists David Blamey and Tom White have organised a sound art workshop. Taking place 6–15 June, the workshop takes in listening sessions, technical instruction, field recording sessions, group discussions and more. For more information on how to get involved, email info@openeditions.com

Veteran producer and On-U Sound label head Adrian Sherwood has joined forces with Rob Ellis (aka Pinch) to release a 12” together, containing tracks "Bring Me Weed" and "Weed Psychosis Mix". It's out on 10 June, available from the On-U Sound site.

Ellis – a driving force in Bristol's dubstep scene, running club nights and the Tectonic label (featured in The Wire 346) – has worked with Sherwood before; first helping on Sherwood's third solo album, 2012's Survival & Resistance and its follow-up EP, Recovery Time.

The Hamburg based label is celebrating ten years in the music biz with a series of vinyl picture disc releases.

The releases comprise new tracks from artists including Pye Corner Audio, Leyland Kirby, Excepter, Bill Kouligas, Vindicatrix, Kemiallysät Ystävät, Black To Comm, with others to be announced. Each release will feature 2–4 tracks pressed onto one side of the vinyl, with artwork on the flipside. Interested parties can subscribe to the first ten of the series (there are a few more instalments planned) for €150.

100 electric guitars gather in San Francisco this November for a performance of Rhys Chatham's A Secret Rose.

On 18 November 100 guitarists will gather at the city's Craneway Pavilion for the performance. As per usual there's an open call for amateur and professional guitarists to join in, applications will go up on the Other Minds site on 15 June.

Prior to the November show two events take place, the first on 7 June at The Lab in San Francisco, where Chatham's Guitar Trio will be performed, and there'll be a discussion with Chatham on his works for guitar, the second less accessible: a private art studio event on 8 June priced at (wait for it) $75 a pop.

New Braxton House has released a DVD of Anthony Braxton performing with cornet player Taylor Ho Bynum. Braxton and Bynum switches between instrumentsplays a number of saxophones, with Bynum switching between instruments too. The performance was recorded in 2010 at the Bazanson Recital Hall in Amherst Massachusetts. Watch a clip from the DVD at the Tri-Centric Foundation.

Members of Braxton's label and publishing house the Tri-Centric Foundation can get audio and the DVD from 4 June, then general release on 13 August.

Japanese free improvisors Marginal Consort are set to play a show in London for the close of the South London Gallery's summer sound art show. Along with the closing concert, Bill Kouligas's Pan label will be releasing a 4LP box set of the group's 2008 Glasgow show.

Marginal Consort's line up currently consists of Kazuo Imai, Kei Shii, Masami Tada and Tomonao Koshikawa. The group were originally formed in 1997 from members of The East Bionic Symphonia, and they played an annual concert every year (inaugurated with a four hour performance) until 2008.

The SLG's show, which opens on 27 June and runs until 8 September, will include performances by Marina Rosenfeld (3 September), Tetsuya Umeda (London Asylum/Caroline Gardens Chapel, 1 July), plus Jérôme Noetinger's Metamkine, and dancer Junko Wada with Miki Yui and Rie Nakajima. The exhibition also includes installations are by Eli Keszler, Rolf Julius, plus Henning Christiansen's 1985 drone and animal sound piece Symphony Natura op.170, among other pieces. More details on the show, At The Moment Of Being Heard, incoming here.