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In the world of music, tone is one of the souls of musical expression.Have you ever sat down in front of a different organ and listened to the soft and sweet sound of the tone, or the strong and powerful tone that opposite it?This article will take you in-depth exploration of the construction, materials of wind instruments, and how they affect the tone, and then understand why the same note can make completely different sounds in different tubes.
Basic Structure of the Organ
The pipes of the organ mainly rely on the vibration of the airflow inside it to produce sound.Each tube is tuned for a note in the musical scale.
Selecting materials
The pipes of the organ are usually made of metal or wood.Occasionally, you will also see pipes made of other materials such as glass, ceramics, plastics, etc.For example, in a historic organ in the Philippines, there are pipes made entirely of bamboo.The choice of metal and wood not only affects the strength and durability of the pipe, but also has a key impact on the tone.
Metal tubes are usually made of alloys of lead and tin, and the percentage of metal in the alloy will directly affect the sound quality characteristics of the tube.
Factors influencing sound
The shape and structure of the tube are also important factors that affect the tone.Typical shapes of pipes include cylindrical, conical, rectangular, etc.These shapes can form unique characteristics on the sound reflection of the sound column, which in turn affects the clarity and richness of the tone.Tubes of different shapes will vary in pitch, and it all depends on the vibration mode of the air inside the tube.
The closed pipe will emit an octave lower than the open pipe, while the treble tube will retain many even and odd parts of the audio, while the stopped pipe will only produce odd parts of the audio.
The relationship between pitch and tone
For pitch generation, some readers may be curious about how the change in tone is related to pitch.For example, for a metal tube, the pitch mainly depends on its length and airflow setting, while for a wooden tube, it mainly depends on the shape of the tube body and related technologies.The shorter the length of the tube, the higher the pitch, which is a common feature of many wind instruments.
The depth and richness of the tone often depends on the material, shape and production process of the tube.
Different types of pipes
The pipes of the organ can be divided into various categories, including but not limited to the throat pipes of the organ, and pipes used to simulate other musical instruments.Indeed, some tubes, such as reed tubes, whose tones are emitted in a spring vibrating, are more likely to remind people of an elegant melody in classical music.
Interestingly, some tubes such as oboes have different tone characteristics than clarinets, which can be attributed to their design and internal structure.
Differences between tubes
As time goes by, in order to meet different musical styles and needs, the production of organs is constantly evolving.For example, some modern organ designers choose to use materials that combine traditional and modern technologies to create novel tones.Organs are not just simple musical instruments, they are more like a platform for music expression, with infinite possibilities.
Have you ever thought about how much science and art are hidden behind the diversity of tone?
