Questions About music not blocked at school

Free Music Streaming websites for school and home?

I cant Find a free music streaming site that has a wide verity of songs and can be used at school and home. I'm not allowed to download anything onto the school network. I have tried groveshark and deezer but they don't have a good enough variety of music. They have some very popular songs missing. I have also tried we7 but it has turned into radio stations with restricted listing. Thanks In advance I would like one with the option of on demand music streaming not just radio stations Youtube is blocked at school