Hi I am knew to your product but so far very happy

I am trying to mix a track of music with another track of audio script reading. The track of music has some enya (I think) singing over some music but I would like to 'play down' the signing side of the song and have more of the music louder. If I increase the level of volume to the track I cant hear the script reading over Enya singing away.
I would dearly love your advice.