Describe how each member of the musical group produces sound.
1. John: playing guitar
2. Annie: playing drum
3. Bob: playing bugle
4. Coci: playing violin
1. John: Playing guitar - John produces sound by plucking or strumming the strings of the guitar. The vibrations of the strings are amplified by the guitar's hollow body, which creates a resonating chamber. The sound produced by the strings is then projected through the guitar's sound hole and out towards the audience.
2. Annie: Playing drum - Annie produces sound by striking various parts of the drum set. She may use drumsticks or her hands to hit the drumheads, cymbals, or other percussion instruments like the hi-hat or tambourine. The impact of the strikes causes the material of the drums or cymbals to vibrate, resulting in the sound that is projected into the surrounding space.
3. Bob: Playing bugle - Bob produces sound on the bugle by blowing into the mouthpiece of the instrument and controlling his lip tension to create different pitches. The sound is created as the player's buzzing lips cause the column of air inside the bugle to vibrate. The vibration then travels through the tubing of the bugle and out through its bell, producing a clear and melodic tone.
4. Coci: Playing violin - Coci produces sound on the violin by drawing a bow across the strings or plucking them with her fingers. When the bow is drawn across the strings, the friction between the bow's horsehair and the strings causes them to vibrate. The vibrations are then amplified by the violin's resonating body, which is typically made of wood. Additionally, plucking the strings creates a percussive sound as the strings vibrate against the fingerboard and bridge of the violin. Both methods produce different pitches and tones that contribute to the overall sound produced by the violin.