Historically, there have been many types and specifications of the instrument. From the perspective of structure and form, it can be roughly divided into four types, namely diatonic accordion, chromatic accordion, button accordion and keyboard accordion.
The structure is very simple, as the harmonica adds a bellows;There are about a dozen buttons on the right to play the tune, and two chords on the left to accompany it.On the same button, push and pull the bellows to produce two tones of different heights (similar to the harmonica);There is no strap on the instrument.The biggest drawback of a diatonic accordion is that it can't be switched.
First of all, it brings convenience to the transfer.The number of buttons of both left and right parts increased, and the height of the push-pull bellows of the piano was different, so the range of the piano was wide.The diatonic accordion also has no suspenders and is still played with both hands.The button accordion (also known as new chromatic accordion, bayan) is worn with a harness.In addition, the sound of pushing and pulling bellows is highly consistent, which gives great freedom to the transformation and application of the bellows.
A button accordion
The number of buttons on the left hand has increased greatly and the arrangement is quite scientific, so it is still used today.The used button accordion includes three, four, and five row buttons.In our country, we mainly use five-row button accordion.The greatest advantage of the button accordion is the chromatic upper and lower line in the twelve mean law.In the 1960s, a keyboard accordion began to appear. Since then, accordion has been divided into two major categories: button type and keyboard type.
The left hand is structured exactly like a button accordion, except that the right hand button is changed to a piano keyboard.Perhaps because of the piano, this improvement made the accordion, a European folk instrument, the most popular instrument in the world.Bass is a left - hand button, contrabass and and rotation collectively
Accordions are generally divided into basses such as 8, 32, 48, 96 and 120.
Button accordion (or bayan) :
An accordion with buttons on either hand.It is divided into B system and C system. The first white key of the first row on the right of system B is B, and the first white key of the first row on the right of system C is C.System B is widely spread in Russia, while system C is more common in Europe.And our country these two kinds of system's qin are more popular.
The right hand is in the form of a piano keyboard with twelve equal laws, and the left hand is an accordion with buttons.
Both the button and the keyboard accordion are divided into a traditional bassil and a double system convertible bassil.The traditional bassoons are left bassoons that only have one set of bass, the same sound just repeats the sound, and all the bass are within one octave.Dual system transformable free bass is a left handed bass with both a traditional bass and a free bass structure, which is transformed by a switch button.When the left hand bass is converted into a free bass, it can play multiple octaves, which improves the performance of the accordion.The right hand keyboard has thirteen tones.
An accordion which USES digital technology to achieve various sound effects and special effects, usually with a MIDI interface to connect to various external devices.Some electronic accordions have a force-sensitive keyboard that not only controls strength through the bellows, but also controls strength with the touch of a key.
Developed from German hexagonal accordions, it is very popular in South America and is mainly used for playing tango music.Piazora, known as the "father of tango", is the best.
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