I am an independent musician. I was wondering if it was legal to remix a song "One - Metallica" and sell it. I know that it is illegal to reproduce a song, especially if it is for profit, if I am using the song in my remix. However, I am not using any of the original artists work. The song I am creating is completely made from scratch, I used no part of the original song and I was wondering if this is still legal since I am not using any part of the original song. And also could I sell it if it is legal?