Welcome to the forums, and welcome to using the Gnutella network.
There are some things you will need to learn to beware of. Some industries feeling threatened by p2p sharing networks respond by spamming them with fake files, virus files & advertisements for their material.

There are ways to filter much of this spam out.

Also, some people purchase files over the internet from sites that encrypt their files with DRM which prevents them being played by anybody else. Some of these people inadvertently without knowing better, share some of these files on the network.

(a) License requirement (click on link), which should deal with one aspect of the licence issue. (post #4 with specifics for LW 5)

(b) Virus thread: Typical virus spam file sizes - Make a note of them (click on blue link to see)

(c) How to find music, ___ (d) Problems with the search, ___ (e) Hostiles List