The guitar is a chordophone, the guiro is an idiophone, the bass clarinet is an aerophone, and the bass drum is a membranophone. The chordophone, idiophone, aerophone, and membranophone are the types of musical instrument differed by the source of the musical sound. The chordophone uses strings as the source of its sound. The aerophone uses air as the source of its sound. The idiophone uses its body's vibration as the source of its sound and the membranophone uses a layer of leather as the source of its sound.
