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Your voice is actually
the sound made by the vibration of your vocal cords. Sounds can move
through air, water, and other materials. We hear the sounds with our
ears as the vibrations pass through our ear canal to the ear drum, which
triggers our brain to begin to understand what we are hearing.
Musical instruments work
similarly to your voice and vocal chords, depending on however what is used
in the instrument to create the vibration. For example, on a harp, the
strings are plucked therefore the strings and the air is what creates the
vibration. The different sizes of the strings create different pitches. On
the other hand, for a trombone, the vibrations are made from the buzzing of
the lips and the blowing of air. Moving of the slide of a trombone changes
the pitch by making the instrument bigger or smaller.
You
and your child might like to experiment with different instruments and learn
what is used in each to create their vibration, resulting in music. You can
also observe how the size of the instrument plays a part in the pitch and
the tone.
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