Soulseek seems to be the best for music.
Soulseek - Slsknet - File sharing software
As for the torrents, your workflow should look something like this:
1. download .torrent file from tracker site.
2. open .torrent in your client of choice
3. start downloading
You wanna make sure the torrent is seeded. It's a different way of downloading, but once you get the hang of it, you're gonna be useless
without torrents.
ABD - always be downloading