Acoustic guitars form several notable subcategories within the acoustic guitar group: classical and flamenco guitars; steel-string guitars, which include the flat-topped, or "folk", guitar; twelve-string guitars; and the arched-top guitar. The acoustic guitar group also includes unamplified guitars designed to play in different registers, such as the acoustic bass guitar, which has a similar tuning to that of the electric bass guitar.

As already stated, the perfect-fifths (P5) interval is the most harmonious, after the unison and octave intervals. An explanation of human perception of harmony relates the mechanics of a vibrating string to the musical acoustics of sound waves using the harmonic analysis of Fourier series. When a string is struck with a finger or pick (plectrum), it vibrates according to its harmonic series. When an open-note C-string is struck, its harmonic series begins with the terms (C,C,G,C,E,G,B♭,C). The root note is associated with a sequence of intervals, beginning with the unison interval (C,C), the octave interval (C,C), the perfect fifth (C,G), the perfect fourth (G,C), and the major third (C,E). In particular, this sequence of intervals contains the thirds of the C-major chord {(C,E),(E,G)}.[4]
I bought this because I wanted to learn more AC/DC songs note for note as they're fun and not overly complicated. This book doesn't disappoint. With the little time I've had to practice so far, this book's been a great help, and for a lot cheaper than most song books. For best accuracy it helps to listen to the songs too. My only gripe is "Have a Drink on Me" isn't included.
Flatwound strings have a flat surface. These strings are very popular among jazz guitarists because they have a very dark and understated tone. However, they are also more difficult to play. These strings are not a good fit for rock or blues, because they’re stiffness and dark tone means that it’s hard to cut through the mix and pull off the fast and intricate runs and bends that define blues, rock, and metal.

If you are starting or just stuck in rut, this is the site for you. I had been playing three years and was not advancing as I wanted to, then I saw an ad for Paul Gilbert lessons at Artistworks. I decided to check it out and I have to say, if I had this from the beginning, I would be a much better guitarist. The main reason why, is that Paul is known for his fast playing, but he focuses you on rhythm to start off. That is were I had lacked. I thought I was a decent rhythm player, but I was not. So much thanks to Artistworks and Paul for the great site.

The Guitar Program at Musicians Institute is designed to develop professional level technique and musicianship through performance-intensive and immersive experiences. Guitar classes are taught by leading professionals and students will get trained in the basics of guitar playing, including performance, ear training, melodic soloing along a huge variety of contemporary styles.