The left-hand column chord begins. Take C major as an example: left hand: little finger 1, ring finger 2, middle finger 3, forefinger 4, thumb 5, middle finger switch 6, forefinger 7, thumb 1.
135 means 53 1, 146 means 52 1, and 725 means 52 1.
It doesn't seem easy to remember, but there are still some tips. Look at the hand, left hand: thumb refers to one finger, index finger refers to two fingers, middle finger refers to three fingers, ring finger refers to four fingers, and little finger refers to five fingers.
Electronic organ is an electronic keyboard instrument, which belongs to electronic music synthesizer.
It uses large-scale integrated circuits, and most of them are allocated with sound memory memory (wave table). It is used to store the real sound waveforms of various musical instruments and output them when playing.
There are two kinds of electronic organ in common use: arranger keyboard (with automatic accompaniment) and synthesizer (without automatic accompaniment). Electronic pianos in a broad sense include electric pianos (digital pianos, which are different from electro-acoustic pianos), and most of them use staff notation, mostly high and low double-line notation. Sometimes we also use alto spectrum, simple spectrum and guitar spectrum. Generally used in rock music.
The emergence of electronic musical instruments, the first is to imitate the "king of musical instruments" organ. The organ was invented in BC17th century and flourished in AD17th century. It is a musical instrument, which makes sound by blowing a pipe as high as a building with water or manpower.
Organ is a large keyboard instrument with a very complicated structure. Organ consists of hand keyboard and foot keyboard, and some hand keyboards have as many as 4-5 layers. The organ plays as well as the orchestra. Organ is complex in structure, huge in volume, expensive in cost, and difficult to move due to the limitation of performance venue and environment.
In order to make it portable, 1907, American T. Cahill invented the electronic organ that uses electromagnetic coils to generate scale signals.