The guitar has been around in one type or another for hundreds of years, and the principals behind how it works have been used for evermore. The term "acoustic guitar" is a retronym, because all guitars were acoustic. It was not till the discovery of the electrical guitar an excellence became mandatory. Acoustic makes reference to a hollow-bodied guitar without electrical amplification. 6 strings composed of either nylon or steel produce corresponding frequencies of open notes E, A, D, G, B, and E The top plates of dearer guitars are made from spruce or cedar, and the back and sides are sometimes made of Brazilian rosewood, maple, or mahogany because these woods are extremely hard and make a contribution to a brighter sound. Lower priced guitars often blend solid tops with laminated backs and sides, and junior level guitars are made totally of laminated wood.

A round hole in the top plate makes a contribution to the sound produced, and the strings of the guitar control the pitch and harmonic content of the tone. Assorted mixtures of different woods and their quality contribute seriously to the tone of the acoustic guitar, as do design and construction elements.

A well made guitar's tone gets better gradually, and reflects the standard of artistry employed in making the instrument. Most orders also qualify for free delivery, meaning more for less. If you are interested, vintage acoustic guitars are particularly sought after not only by collectors but by guitar players who need to own a legend. As an example, Gibson guitars are a fine investment whether you're attempting to find a modern classic or a true vintage series.