Yushka2
First of all I’m only talking Jewish music. It is assur to listen to non Jewish music. Classical music is different and I believe there are many who are matir. Bottom line as long as there’s no singing and no lyrics.
About copying: It is assur to copy or download music that one has not purchased. Yes one may listen to their friends ipod or cd sincle that falls under normal use, however I don’t know what the Halacha would be if your friend had illegally downloaded or copied the music