All fifty arrangements of jazz standards in this book are written in a single line "fake book" or "lead sheet" format. However, they are not just the standard renditions of the songs. All are custom arrangements, logical suggestions for repeated sections, and simple but stylish song endings. The chords below the lines are the traditional harmonies. The chords above the line are more advanced, alternate harmonies. A musician using these arrangements may use just one set of these chord changes, or a mixture of them within a song.