Clippard Instrument Laboratory pneumatics guitar uses 62 pneumatic valves and 62 pneumatic cylinders, working in conjunction with a microcontroller-based I/O board, to strum the guitar’s six strings and create percussion sounds.
I don't think we have to worry about losing jobs in bands with this device. I wonder if it can "squeegee" the string to vary the frequency? How about vibrato? I hope this was developed just to prove their expertise in pneumatics, 'cause I ain't buying the CD.