How do I delete songs off of my IPad?

My daughter has a boat load of songs in her ITune library on my computer. I only wanted to down load a couple of them, by CCR, but somehow the stupid thing down loaded every single song she had, including songs by Korn and Seven Dust and crap like that. I don’t know how to get those off, and leave the ones I want, including the 15 or so that I’ve purchased.