How it works...

The initial lines of code import the necessary libraries and set up the constants that are required for the rest of the code in the program. The brightness of the pixels is also set to a more comfortable level. The script then starts playing the high-pitched beeping tone in the background. It does so while looping through the 10 pixels and turning each one red, with a 0.1-second delay between each loop.

Once the animation is complete, the tone playback is stopped and a lower tone is played. The pixels are once again looped through; however, this time, they are shut off one by one. Finally, once the loop ends, the tone playback is stopped.