I got the BLM scalar app working on the Raspberry Pi (Debian) - I can use the Pi to run the Novation Launchpad BLM, it works pretty much perfectly, although it leaves some lit LEDs behind the current step indicator occasionally until it passes again.  No big deal...   The compiled Raspberry Pi binary is here:   http://www.boxx.ca/BLM-Rpi     Let me know if it works for you.   It segfaults if it is run from the terminal without X (TK, could this be made headless?).  So, set your Pi to au