Corrections:

If  I would invent something, I would invent a web with musics music. There is the music are  songs we can make and listen, too. First we download every music at half - invisable invisible web. And we press the 'start' butten  button  and the music is played will play from the invisable invisible web CD player.
This would be named 'Invisi'
Next, I would invent those a thing which will always nows know what mood we are in and also play the music we want to listen too. So they will turn the music on when we enter the house.
This would be named 'anymusic'.
I want to invent the things that would be very helpful to me. ( Not only me, but  to other people, too!" And I will also make sure the music is always nice, not bad music with mean words.
The computer can tell you any imformation wich information about music.

*Please be mindful of the spelling of words and choosing the right tenses of verbs. And also, study about sentence arrangement. Thank you!