These pages are seriously backed up, so there’s only time for brief reviews of all the recent gigs, starting with Rhys Chatham at the Tanzquartier Wien (which is actually in the Kunsthalle). This was a fine evening of avant rock, with Chatham joined onstage by eight other guitarists (including Eric Arn of Primordial Undermind) and Bernhard Fleischmann on the drums. Together they made a fearsomely powerful noise which was, nonetheless, controlled and rigorous in its execution. Chatham’s instinctive understanding of crescendo and release was hugely impressive.