How do I download or backup music from my iPad?

Years ago I uploaded some music from old vinyl records to my pc, then used iTunes to listen and then uploaded them to my iPad. Since that time, My pc had died, the the songs are still on my iPad, but they ipad is slowly becoming less functional. The only place I can find the music is on this iPad. Is there any way to download or backup the music so that I can have it after this iPad goes?

[Re-Titled by Moderator]

Original Title: music files