MIDI with, um, just about everything, but Jess Hoefs' Beat Blocks creation certainly brings back fond memories of our childhood days. Based around basic wooden blocks, colored with blue tape and adorned by bottom-mounted sensors, the system functions when a block is placed into a sensor-laden cube on the board, sending a signal to generate a specific loop. The "tangible interface for a rhythm sequencer" utilizes MIDI and contacts in order to generate sound signals, and by re-arranging the blocks on the fly, users can mix up the beats and create quite the musical masterpiece whilst reliving their days of innocence. Jeff is looking to ramp up two different flavors, with one being of a smaller, more performance-oriented design, and a larger matrix board to accommodate "multiple users." So if you're still curious just how fiddling with toy blocks can actually create musical delight, be sure to hit the read link and surf over to the video demonstration.