Instruct: Classify a review into positive or negative sentiment.
Query: the butterfly

This album has some strong material which holds up over time. Just one point of clarification from the prior comments, but it's so minor it is only for die hards. The "keyboard player" used an RMI keyboard. He raved about it in an article I read back "in the day" to the point where I checked one out. I believe the model was the "Rocksichord." Not quite their "Keyboard Computer" model, which would come out later, but a versatile and unique machine on its own. You can tell it's not a clavinette or other electric piano because the RMI has a distinctive sound. Check out old Genesis stuff, like "Lamb Lies Down on Broadway" for other RMI sounds.