Instruct: Classify the given review into positive or negative sentiment.
Query: Not so authentic

I found this CD to be a bit stilted in its representation of Gregorian chant. The voices are beautiful, but there are only two or three of them to my ear. The CD notes do not even reference the name of the group or its conductor, but only mentions two singers by name. Even though the CD notes refer to Gregorian chant as "flowing" and having its own rhythm, each note of every chant was the same length and had the same volume. This CD would be fine for background music. However, it is not authentic Gregorian chant.