Acoustic guitar

An acoustic guitar is a guitar that uses only acoustic (as opposed to electronic) means to transmit the strings’ vibrational energy to the air in order to produce a sound. This typically involves the use of a sound board and a sound box to amplify the vibrations of the string. The source of sound in an acoustic guitar is the string, which is plucked with the fingers or with a plectrum. The string vibrates at a fundamental frequency but also creates many harmonics at different frequencies.