Utorrent. Altough you need to download torrents and these can take days on end.
uTorrent is a very good program
Ares is good
frostwire.
Winamp. It is a free download, and you can set up your playlist in any order you like.
limewire. its pretty good but watch for viruses! i know of nothing better.
Yes
Music Oasis is free and legal..... Musicoasis.com
beemp3
idownloader
limewire is a good place download free wwe music
Through Emule.
You need to download an antivirus program. A good free program is AVG. A good paid program is Kaspersky.