For the band, I would want flute because that's my instrument and its soo cool!
violin for orchestra because the violin is so sweet and tiny and has a wonderful sound. both instruments could play Beethoven's 9th. they are important because with their little sound they carry a lot of notes that make the music kinda flow!
The diaphragm is another term for the aperture, so it controls the amount of light passing into the film camera.
E one finger down on the d string
I would say A. Advertisers tend to target their ads at a certain age group, and using different types of music can have a different appeal to a certain age group. If they want certain people paying attention to their ads, they'll most likely use a song from their generation.