Here's a few collaborations that didn't make it past the gel stage...the first being more of a cubase VST demonstration for Dave Lombardo (Slayer, Fantomas, etc) than an actual collaboration.

Close to a decade ago I was opening shows for Fantomas, and during a long drive Dave mentioned that he wanted to learn about digital audio workstations. I had a laptop with Cubase VST installed, and he had a CD-R of rough-mixes for a solo album of his drumming. I loaded up the track of his choice and put together this piece which also utilized some guitar recordings I had on the hard drive. Requests were made to simulate drum n bass style breaks. All this was done in the tour van, en route to the next gig. A few years later I was contacted by Mike Patton and was asked to take part in production on Lombardo's solo album. After accepting, I never heard about it again:

The next 2 tracks are from a collaboration between myself, Michael Gira (Swans, Angels of Light, etc) and Dan Matz (Windsor for the Derby). Plans had been made for a direct collaboration with Gira, and a few weeks before our scheduled start date he informed me that Dan would be joining us, and we would record at his space. Knowing Dan vaguely through his then-day-job at Kim's Underground in NYC, it was welcome news. After a week of initial recordings, I was silently phased out of the sessions and never told about it - even though the final release ("What We Did" by Gira/Matz on Young God Records) contained my tracking which I consider somewhat central to the finished pieces. I was credited with the work, but to this point (nearly a decade later) the promised financial compensation remains unpaid. Before I was (or more to the point, wasn't) telepathically fired from the sessions, I managed to rough-mix a few of the tracks. Here are 2 examples, in their skeletal form: