Providing over 80 lessons with over 40 videos, this electronic download of Rock Guitar For Dummies v2 for Mac from eMedia Music instructs you on the basics from holding and stringing your guitar to chords and strumming styles. It features songs to learn and play along with in a variety of musical styles, with full multi-track audio playback. Basic guitar instruction tools such as a tuner, metronome, and chord dictionary are integrated right into the software.