Seeing announcement of an album by Benoît and the Mandelbrots reminded me of the 2012 HELOpg album lptp that is available online at http://lptp.helopg.co.uk/
It looks like the HELOpg blog never mentioned it, but Adam Jansch has, and our methodologies around multi-track recording laptop ensemble improvisations were discussed in our Lessons Learned (so far) paper
