(Guitar). In an attempt to teach the aspiring rock guitarist how to pick faster and play more melodically, Dave Celentano uses heavy metal neo-classical styles from Paganini and Bach to rock in this great book/audio pack. The book is structured to take the player through the examples in order of difficulty, from easiest to most challenging. Audio demos are accessed online using the unique code inside the book and can be streamed or downloaded. The audio files include PLAYBACK+, a multi-functional audio player that allows you to slow down audio without changing pitch, set loop points, change keys, and pan left or right.