Practice Essentials for the Guitar Volume 1 lays out a variety of rhythmic patterns in multiple time signatures to enhance rhythmic skills. Each rhythmic pattern also has a corresponding melodic line to be used for sight reading and to strengthen basic staff reading abilities. Practice Essentials for the Guitar Volume 1 starts out in the key of C and works its way through the keys of G and F. Upon completion of this book you can expand your ability through additional key signatures in volumes 2 and 3.