I thought this CD would be worth a listen to after experiencing the Turangalila Symphony. However, compared to the great Messiaen works, such as the Turangalila or the Quartet for the End of Time, this work is quite mediocre, and not worth the price of the CD.
In form the music alternates between serene moments and Messiaen's famous birdcall music. However, the more serene moments do not have the timeless quality that you can find in Mahler, Tavener, Part, etc. Unless you must listen to all of Messiaen's works, skip this one.