[Halcyon]

Hi, and welcome to the forums.

Most music on the net is put there illegaly and anyone downloading it is doing so illegaly.
Even some pieces of classical music from a dead composer such as Beethoven will have an aspect of copyright to it.
The only legal way is by purchasing tracks for download. These are however most of the time very new tracks dating back no longer than the last 2 years maximum.

There may be some companies that offer older albums for download, but Im sure they will be at a price.
Sorry I cant be of any more help.