Blowing instruments
Wind instruments category
Another category is that of wind instruments.
In these instruments, the sound is produced by blowing in a tube. They divide into two groups: wind instruments made of wood and wind instruments made of copper.
The generation of sounds in the wind instruments made of wood is based on covering the holes with fingers or with some keyboards.In this way, the length of the air column from the tube is varied and the sounds have diffrent heights.The pipe has 6 or 7 holes that can be covered with fingers, achieving a number of notes.
Other wind instruments are based on another working principle.Blowing makes the reed of a bassoon vibrate, producing vibrations of the air column in the instrument. The combination of a vibrant reed of a bassoon and a cylinder made of hollow wood gave birth to a new family of tools: wind instruments with the reed of a bassoon, which include the clarinet, bassoon, oboe.
We have found out things about the history of these instruments in books and we can certainly say that it is as interesting as the principle of functioning. The wind instruments have a long history being made in several different forms and proportions.In Mozart and Beethoven's orchestras were only 8 wind instruments made of wood, two of each: flute, oboe, clarinet and bassoon.
In the nineteenth century, as a desire of diversification of the orchestra’s tonality were introduced new instruments: piccolo, English horn, oboe, bass clarinet which have a deeper and serious sound than the normal variants. Consecuently, the family of blowing instruments was expanded, having 12 members.
Wind instruments made of copper
Barring the wind instrument of wood, there are a group of wind instruments of copper, which enhance the arrangements harmony. They represent the cheerful,rigorous and triumphal tonalities , transmitting high states and feelings.Trumpets, clarions, trombones and tubas are metal tubes, having at one side a mouthpiece and inside the sound is generated through the lips moves.
Wind instruments of copper, have produced a limited number of sounds, for a long time.In the nineteenth century the keys were introduced, the instrumentalist could adjust the vibrations produced in the tube. One of these instruments is the trombone, which has a sliding part called connecting link.
The quality of sound produced by this group of instruments is influenced by the diameter of the tube, the shape and size of the body cavity, and the funnel opening.
