Activity 1 Directions Provide come up with or improvise at least 10 mediums or sound-producing materials and categorize it according to Hornbostel-Sach classification of instruments (Idiophone, Chordophone, Membranophone and Acro phone). The first two items are done for you. OF MEDIUM CLASSIFICATION MODE PRODUCING SOUND 1. Blowing Tapping Striking Bamboo Tube Idiophone Aero 2. Shaking Flattened Tin Bottle Caps Idiophone 3. 5. 6. 7. 8. 9. 10.​