Pre-Assessment: I 1. Picture Identification: Classify the musical intruments according to the following: A. Idiophone D. Membranophone B. Chordophone E. Electrophone C. Aerophone 1. Bongo Drum 6. Keyboard 2 Whistle 7. Lead Guitar 3. Xylophone 8 Viola 4. Bamboo Organ 9. Dulcimer 5. Cymbals 10. Angklet