(Eulenberg Audio plus Score). The Eulenburg Audio+Score Series covers more than 200 years of the world's favorite classical music. Each of the 50 volumes consists of a clearly-presented and authoritative musical score, an informative preface detailing the biographical and creative background, and a Naxos CD containing the work in full length. Eulenburg Audio+Score is the new way to hear, read, and understand music for everyone from the casual music lover to the expert enthusiast. Each volume includes a study score of the music with an informative article and a CD with a complete recording of the featured piece.