If the umbrella can play songs

Guangzhou Haixinsha Plaza, there is a musical fountain (it can follow the rhythm of the music, the fountain will shoot out different shapes of water column, the water becomes alive, and dance according to this different melody), every night 8 Dian will hold a half-hour musical feast. It is also the encounter between "waterdrop" and "music". Now, in rainy days, Umbrella can also play a wonderful snare drum with a strong sense of rhythm.         

On a rainy day in Guangdong, holding an umbrella and listening to the crackling rain on the umbrella, please use your imagination. If you can invent an umbrella that transforms the falling raindrops into beautiful and moving music, will it be A very romantic thing? In the rainy season, a symphony dance music will sound everywhere outdoors, and the style of the whole city will become a brilliant European style. What a shock it will be! How spectacular!

In fact, this is not impossible. The key is that the umbrella is an umbrella cloth. If the umbrella cloth has a high density, the sound of the beating rain can form a sound of different rhythms, with different scales according to the arc.

A musician in Germany invented such an umbrella. The melody was controlled by the intensity of rain hitting the umbrella surface and finally transformed into a piece of beautiful music. The umbrella prototype consists of 1 umbrella, 12 piezoelectric sensors, 2 amplifiers, 1 Arduino Uno controller and many cloth tapes. It took the inventor three months to successfully compile the program code, and then collaborated with his band to arrange music to create this musical umbrella. On a dull rainy day, if you can hold such a romantic umbrella, maybe it will add a little sentiment, which is also a kind of pleasant enjoyment.

Holding an umbrella, walking in the rain, there will always be some romantic feeling; if at this moment, with the beating of raindrops, the sound of beautiful music floats over, is it more artistic?