ELI5- How does pushing air through an instrument make a note? And specifically for brass, why does buzzing work but not regular air flow?
In: Engineering
to make a sound you need vibrations for example, when you talk, it is your vocal cords that are vibrating. For a woodwind instrument, like clarinets and saxophones, it is easy to see that a reed is vibrating when you blow through it, making the sound. For brass, you have to vibrate your lips to have that sound travel through the horn. the different pitches comes from different tube length controlled by the valves.
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