Is there any way to download music for FREE, but LEGALLY?

download frostwire, its free, safe and legal. a lot of ppl think its illegal but it really isnt because all it is, is other people sharing music with other people, so it really isnt stealing. i know this because a police officer came to my school last year and was talking about internet safety and 1 of the students asked him if it was illegal and thats wut he said.