I need some information about the leaflets of the musical instrument store. Introduction to guitar, guzheng and piano vocal music.

Folk guitars can be subdivided into acoustic guitars and chopping guitars. The former is suitable for playing chords, while the latter is suitable for playing high-pitched solos. The neck of folk guitar is relatively thin, the upper finger is 42mm wide, and there are *** 14 characters from the string pillow to the body. There is a crescent-shaped guard on the piano box, which is played with steel strings. On the fingerboard, the character 14 is from the pin pillow to the joint between the handle and the piano box. The fingerboard is narrow, steel strings are used, and the tail of the piano has straps. Generally, there are guards on the panel, which can be hit with nails or picks. Folk guitar is round and bright in tone, rich in sound quality and relatively free in playing posture. Mainly used to accompany singers, it is suitable for country, folk songs and modern music, and the playing form is more relaxed and casual. Grass roots have a strong smell and are the most common kind of people among many people.

The basic structure of piano:

(1) shell

(2) Sound source system

It consists of four parts: iron bar, dial, back frame and string array.

(3) Strike system

It consists of two main devices, namely, the string striking mechanism and the pedal mechanism.

Now it is only 1-2 meters high. The grand piano is 2.7 meters long. Structure: Consists of a string array, a soundboard, a bracket, a keyboard system (including a black and white keys and a percussion pestle), a pedal mechanism (including a push rod and a pedal) and a shell. Materials used: chord array: high and medium-grade steel wire for chord; Bass strings are made of steel wire and copper wire. Sound board: wooden structure. . Keyboard system: black and white keys is made of ivory or bakelite; Stereos are usually made of wood. Pedal machinery: metal structure. Shell: painted wooden structure. Musical instrument features: wide range, large volume, rich timbre changes, able to express all kinds of musical emotions, either rigid or soft, or urgent or slow; The treble is crisp, the midrange is full and the bass is strong, which can imitate the effect of the whole symphony orchestra.

Introduction to guzheng:

Guzheng was circulated in China as early as the Qin Dynasty. After thousands of years of development, it developed from five or six strings in the Tang Dynasty to twelve or three strings until sixteen or nine strings in the Ming and Qing Dynasties. After the development of performers in different regions, a good situation has been formed in which different genres have different styles, rich repertoires and appeal to both refined and popular tastes. At present, guzheng is mostly composed of twenty-one strings. Its beautiful timbre is suitable for both solo and ensemble. In recent years, with the efforts of many composers and performers, the guzheng repertoire has been increasing and many excellent works have emerged. Guzheng is an ancient national musical instrument. Its structure consists of a panel, a wild goose column, strings, a front Yueshan, a string nail, a tuning box, feet, a back Yueshan, a sound hole on a side plate, a bottom plate and a string hole. The shape of the Zheng is a rectangular wooden sound box, and the string frame "Zheng column" (that is, the wild goose column) can move freely, with one string and one tone arranged in five tones.

Introduction to Jazz Drum: Also known as drum set, drum set is composed of many drums and hairpins. There are five drums, seven drums and nine drums. Take five drums as an example to illustrate; Drum (BD) drum (SD) drum (FT) eardrum (TT) stepping hairpin (HH) big neutral hairpin (CC).

Drum set is a very important non-pitch percussion instrument in jazz band, also known as jazz drum. It was formed in the 1940s, including hand percussion instruments and foot percussion instruments with different timbres. Hand percussion instruments include small drums, big drums and hanging hairpin, while foot percussion instruments include big drums and stepping hairpin. On this basis, additional percussion instruments can be added or subtracted at any time according to the needs of performance. Drum set is a percussion instrument, which is used to play "rock", "twist" and "jazz music". In the long-term playing process, a set of fixed rhythm types have been formed, such as Dirsk, rumba, tango, samba, cha-cha, Bolero and so on. These rhythms are strong and distinct, and each has its own unique style.

Introduction to vocal music: the concept of vocal music-also known as artistic singing. It is a music performance art that combines artistic language (singing language) with scientific singing voice (artistic voice) to create a vivid and pleasant auditory image-singing voice, and expresses lyrics (poems or words) with highly concise meaning and typical and emotional melody tones (music vocabulary), thus expressing thoughts and feelings and making a second creation. In short, vocal music is the music of singing language with human voice.