Does anybody know a good FREE MUSIC DOWNLOADING app for MACBOOK PRO?

I recently got a MacBook Pro and I love it, but I can't find any
decent applications to download that let me get free music.

I tried frostwire, but every song I would download was some
announcement about limewire and frostwire court settlements. Someone
told me to try luckywire, but on my mac it came up as a textedit file
full of strange symbols.

So does anybody know a good WEBSITE or DOWNLOADING APPLICATION for
getting FREE music on a MACBOOK PRO? Please let me know, thanks.