Music downloader

There are lots of Music Downloaders on net, I am listing three of them:

Lime Wire : http://www.limewire.com/
FrostWire : http://www.frostwire.com/
Kazaa : http://www.kazaa.com/us/index.htm
Ares : http://aresgalaxy.sourceforge.net/
BearShare : http://www.bearshare.com/