~If you have a folder on computer 1 that you want computer 2 to have access to, you would go to computer 1 and set that folder to share with anyone connected you your router (trying to avoid the word network for you, lol).
Music affects the levels of alertness and concentration, enhancing your creativity (the right side of your brain). If knowledge is  food for thought , then music is definitely the digestive system that helps your brain proper *digest* that knowledge.
How noise affects your sleep. While you sleep, your brain continues to register and process sounds on a basic level. Noise can jostle your slumberâcausing you to wake, move, shift between stages of sleep, or experience a change in heart rate and blood pressureâso briefly that you don't remember the next morning.