I love this quote because i have experienced this feeling. The music has more than enough power to either make you feel something you don't want to, or to make you forget things you want to. And I think the power of music makes it amazing and beautiful.
Yet again good old Bob Marley. Yet it is the lyric in this case. When I am upset, in love, or in pain these emotions affect the music I choose. Often it calms me down. Most of the time I forget or get over it before the end of the song.