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In formal music (a.k.a "classical music"), dynamics are a way of notating the loudness or softness of the music being played. Since traditional musical instruments don't come with volume knobs, it all comes down to the performer to know how to change the volume of the sound being produced by the instrument.
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Here are the six basic dynamic notations:
fortissimo: very loud (screaming)
forte: loud (yelling)
mezzo-forte: kind of loud (loud talking)
mezzo-piano: kind of soft (low talking)
piano: soft (murmuring)
pianissimo : very soft (whispering)
And here are the dynamic markings having to do with changes in loudness:
crescendo: gradually going from soft to loud.
diminuendo: gradually going from loud to soft.
sforzando: suddenly playing a loud accent.
fortepiano: playing loud at first, but quickly shifting to soft playing.
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Online sources:
https://en.wikipedia.org/wiki/Dynamic...)
http://www.zarukin.com/homework/dynam...
https://www.espressoenglish.net/advan...
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Royalty free music from Bensound
bensound.com
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Video credits:
Evan Le playing Mozart's "Rondo alla turca"
https://youtu.be/GoCx0FxK9fA
Dave Pulcinella playing "Shout" by Tears For Fears:
https://youtu.be/IRr8NeBBkFw
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Image credits:
http://cdn.head-fi.org/3/37/370d9747_...
http://www.uiparade.com/wp-content/up...
https://upload.wikimedia.org/wikipedi...
https://s-media-cache-ak0.pinimg.com/...
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