Chordophone achs-Hornbostel System Membranophone Aerophone Idiophone These are blown instruments through a mouthpiece and mostly by covering fingers holes. 2. These are instruments with strings played by plucking, bowing, and strumming 1. These are instruments that is percussive in nature and is played by tapping, hitting, striking with the use of sticks or with bare hands. 4. These are instruments that is also percussive in nature and is played by tapping, hitting, striking a stretched membrane or skin of animals with the use of sticks or with bare hands.​