What is the function of the trombone slide?

The trombone is a wind instrument, whose sound is generated through the impulse of air by the person who uses it through its mouthpiece. In itself, this instrument has a low sound, which is regulated by its slide: the longer the slide is lengthened, the more air will enter the instrument tube, making the sound more low-pitched. On the contrary, the less the slide movement is lengthened, the higher the sound will be. Thus, the slide fulfills the function of regulating the tones of the sound emitted by the instrument.

1 - since it's a library, i'd like putting a sculpture from ancient greece, probably from the hellenistic epoch.

2 - i'd also like the statue to be from a famous person from that time, a philosopher of possible.

3 - i'd want the statue to be of a man sitting down on a tree stump with a book on his hands (either writing or reading), to demonstrate the love for reading.

4 - i'd also like to have the statue with a darkish colour and high contrast, as well as a statue that resembles balance and a little movement on his head if he is reading or on his hand if he's writing.

hope it ,

bioteacher101

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