Instruct: Classify Amazon reviews into positive or negative sentiment
Query: voices and backgroud music don't mix

What strikes me most about Vespertine is something that has also been prevalent on her previous albums: her voice and the background music simply are not well-balanced. Her voice is just too loud in the mix. It's a serious production error that makes listening to her music quite hard for me. I have no clue why her music is produced this way. Maybe she thinks that her frail voice sounds better when placed up front all the time, but actually it doesn't. Especially on this ablum it would have been so much better if the mix would have been more balanced, since she often hardly sings any real melody. The songs sound pretty boring this way.