This Alfred edition of J S Bach was carefully and methodically prepared by William A Palmer. An introductory section offers a thorough explanation of trills, mordents, appoggiatures and other proper ornamention applicable to these preludes. This feature helps make this edition of Bach's 18 Short Preludes the most practical and attractive one available. The CD within this book has been specifically recorded using the tempo, dynamics & phrasing that are included in the music.