Laser-guitar is one of the futuristic musical instruments.

  

Laser-guitar is one of the futuristic musical instruments. 

What if we would make laser guitar? The laser ray can travel in the light cable and the curving of the cable causes the differences of the symmetry of the laser ray when it would come out from the other side pf the light-fiber. The laser ray would affect the group of miniaturized photovoltaic cells, and that thing can be turned to sound by using a computer. This is one of the versions of the futuristic music instruments, but the thing is that the strings can be replaced by using laser rays, what are traveling in the air.  

In another way is to aim the laser-ray to the strings of the guitar. Those laser rays are measuring the oscillation of the strings and other parts of the guitar and then those oscillations are transformed to sound. The idea is the same as the laser microphone. The system meters the distance between the radiation source and the target, and that thing can transfer to the sound signal by using a computer. 

The miniaturization of technology makes it possible to make new instruments for the music business. The thing is the laser-guitar, where the strings of the guitar have been replaced with laser rays. The system would act by using the laser rays that would be shot to the series of miniaturized photocells, and when the finger of the player would hit to the laser, that thing would cause the change in the numbers of the photocells, what would cause the changes to the tone. 

Source:

Laser guitar: https://newatlas.com/laser-system-detects-guitar-string-pitch/19278/

Image: https://www.clker.com/cliparts/d/0/e/7/1440897686489972210glowing%20guitar.jpg