An Arduino direct a 8-relay board, which close the circuit of the micro motors (5 volt). Their movement produce a vibration on the metallic surface, that surface is read by a contact microphone. This last one, take the signal to a mini mixer. The mixer receive all 8 signals. It comes to the audience by 4 speakers. The perception is a sound that retake the noise experience and the tangible music. The sequence is programmed by an Arduino, the sketch direct the machine with the morse language and it repeat oneself, as a loop