Acoustic Guitar
The acoustic guitar uses only acoustic methods to project its strings. This means the sound it makes is limited to the strings only, without the addition of distortion or other effects.
The string on the guitar by itself creates only a small amount of sound. The acoustic guitar increases this sound by using a soundboard. The body of the guitar is hollow, and when the vibrating strings drive the soundboard through the bridge, since the soundboard has a larger surface area, a much louder sound is produced than would be by the strings alone.
Forms and styles of acoustic guitars are actually more diverse than they are for their electric counterparts. This variety includes the steel-string acoustic, the lap steel guitar, the extended-range guitar, and many others. Different types of guitars produce different sounds and play differently. To find the best fit, there is no substitute for practicing with the instrument itself.