Final answer:
In western music classes, instruments are typically classified into different categories based on the way they produce sound. A guitar is classified as a chordophone because it produces sound through vibrating strings.
Step-by-step explanation:
In western music classes, instruments are typically classified into different categories based on the way they produce sound. One common classification system includes aerophones (wind instruments), chordophones (stringed instruments), membranophones (instruments with a membrane like a drum), and idiophones (self-sounding instruments). A guitar would be classified as a chordophone because it produces sound through vibrating strings.