آلات موسيقية أخرى - الإكسيليفونات - الآلات الموسيقية .. الآلات التي نستخدمها كل يوم

Other Musical Instruments - Xylophones - Musical Instruments .. The instruments we use every day and how they work

Other Musical Instruments:

It is not only strings and air columns that vibrate and produce sounds. In fact, every elastic body can vibrate and oscillate. Therefore, we make musical instruments from elastic bodies, and they include leather, wood, metals and bones. Whatever the type of material from which these instruments are made, the rules and foundations that we talked about remain constant and do not change. These rules are:

1 - Long bodies produce a sound with a deeper pitch than the sound produced by short bodies.

2 - Heavy bodies produce a sound with a deeper pitch than the sound produced by light bodies.

Let's now take a look at some of these instruments.

Xylophones:

Xylophones are usually made so that they consist of pieces of hard wood arranged in a box according to their size. Each piece of wood is cut to a specific size, so that it produces a tone with a special pitch if struck with a wooden mallet or covered with cloth. Some xylophones are designed with hollow metal tubes - called tremolos - fixed under the wooden pieces. When the wooden pieces are struck, they vibrate, causing the air in these hollow metal tubes to vibrate. This double vibration produces a sound higher than the sound produced by the wood alone.

Xylophones that are used as toys for children are usually made of metal rods or glass tubes. You can make a xylophone by lining up eight glasses of the same size. Leave the first glass empty. This glass will produce the high note of a scale of "eight notes." Put water in the other glasses; but add this water gradually and in small quantities each time, so that each one will give you the correct note if you hit the glass with a knife. Increasing the amount of water increases the weight of the glass, and the tone it produces becomes deeper.