Can you download Frostwire and access music without legal implications?

Torrent based downloads are inherently insecure as their software makes your machine a server to the net. Someone can dump a non-release software on your hands that is pirated. So no, unless they manage to do it without Torrents, I would not say it is secure.

That depends on what music it is. As you probably know, the recording industry has sued people for torrenting copyrighted music without permission. If you become the target of such a lawsuit, it will ruin you financially, even if you win.

Aside from the possibly included malware in such downloads, an easy thing to remember: if the music or any other file or app costs money elsewhere, then you are circumventing the rules and downloading it illegally.

I Have an iPad 3 and I would like to download free music . What software should I download?

You should read the other responses. Regulations re. DRM and copyright issues were tightened recently. Saving a little money vs. getting sued by the recording industry will cost you more in the long run.

This board is subject to the laws of California in the U.S. The Digital Millennium Copyright Act is still in effect. Thus any responses to your query if they are to download any commercially available music for free are subject to be wiped and this thread removed. If you want "free" music, create your own and base it on no one or offer your own original twist to it. What constitutes original is in the eye of those who already wrote music. So you might start by consulting some artists and taking music lessons. Those can pay dividends.