1. Identify the advantages and disadvantages of materials.
(1) panel
The advanced piano is made of spruce or fish scales, with a straight texture and a ring width of 1-2mm. Only two pieces are spliced in the middle, and the material color should be uniform, white and free from defects such as knots, cracks, wormholes and black tendons.
Most of the intermediate pianos are made of pine or pine plywood, and the texture is relatively straight.
Generally, pianos are made of basswood plywood or high-quality plywood of the same material.
(2) Side plate and back plate.
The advanced piano is made of high-quality veneer or plywood such as black peach wood, rose wood and mahogany. In particular, symmetrical textures and beautiful patterns are even more valuable.
The intermediate piano is mostly made of veneer or plywood materials such as maple and mahogany, with slight flowers.
The grain is not as fine as the advanced piano, but there are no defects.
Generally, pianos are made of high-quality basswood, maple and birch plywood.
(3) Chord codes of fingerboard
The advanced piano is made of high-quality wood such as Ubuntu, mahogany, rose wood and rosewood.
The intermediate piano is made of mahogany, rosewood, rosewood or similar hardwood.
Generally, pianos are made of maple, maple and birch.
2 from the process level to identify
It is easy for buyers to see that the more advanced the piano, the finer the craftsmanship and almost no defects can be found. The advanced piano has a beautiful shape, smooth lines around it, beautiful wooden patterns, exquisite inlays, smooth body surface and clear paint surface. How to identify the guitar?
Guitar quality appraisal should have certain professional knowledge and experience. The more advanced the guitar, the smaller the difference in quality level, and the more difficult it is to identify. The following are general identification methods:
1. Identify the advantages and disadvantages of materials.
(1) panel
The advanced piano is made of spruce or fish scales, with a straight texture and a ring width of 1-2mm. Only two pieces are spliced in the middle, and the material color should be uniform, white and free from defects such as knots, cracks, wormholes and black tendons.
Most of the intermediate pianos are made of pine or pine plywood, and the texture is relatively straight.
Generally, pianos are made of basswood plywood or high-quality plywood of the same material.
(2) Side plate and back plate.
The advanced piano is made of high-quality veneer or plywood such as black peach wood, rose wood and mahogany. In particular, symmetrical textures and beautiful patterns are even more valuable.
The intermediate piano is mostly made of veneer or plywood such as maple and mahogany, with slight flowers.
The grain is not as fine as the advanced piano, but there are no defects.
Generally, pianos are made of high-quality basswood, maple and birch plywood.
(3) Chord codes of fingerboard
The advanced piano is made of high-quality wood such as Ubuntu, mahogany, rose wood and rosewood.
The intermediate piano is made of mahogany, rosewood, rosewood or similar hardwood.
Generally, pianos are made of maple, maple and birch.
2 from the process level to identify
It is easy for buyers to see that the more advanced the piano, the finer the craftsmanship and almost no defects can be found. The advanced piano has a beautiful shape, smooth lines around it, beautiful wooden patterns and exquisite inlays. The surface of the piano body is smooth, the paint surface is bright and clean, and the color is uniform. All kinds of accessories are coordinated, including colored Luodian or ivory decorative inlay.
The shape of the intermediate piano is very similar to that of the advanced piano, but the process is simpler. There are simple inlaid lines in the middle seam and four sides of the back plate of the piano body, and the wooden patterns are rare, but the surface is still smooth and the technology is fine.
Generally speaking, the general piano is not inlaid, but there are lines or flowers to improve the artistry. The paint is spray painted, and the smoothness of the piano body is worse than that of the advanced piano.
3. Identify from the sound quality
This is the most difficult one. Sound quality is an abstract subjective feeling, which is related to the reflection of the surrounding environment, the player's skills, the accuracy of tuning the strings, hearing and so on. To make a comprehensive evaluation, here is only a general description.
The timbre of advanced piano is unified and harmonious regardless of high, medium and low. The treble is bright and clear, the midrange is gorgeous and soft, the bass is powerful, the strong sound is solid, the sound quality is pure and noiseless, the pronunciation is sensitive and loud, it is easy to produce sound when hitting, the lingering sound is long, the transmission is good, and the whole range scale is accurate.
The intermediate piano has relatively uniform timbre, sensitive and loud pronunciation, accurate scales and no noise.
The general piano scales are accurate, the pronunciation is loud, and there is no obvious noise.
4. Quality inspection methods and requirements
Whether advanced, middle school or ordinary guitar should meet the following requirements:
(1) The center line of the piano head and the center line of the piano box should be in a straight line.
(2) The handle should not lean forward or backward, and the horizontal line of the fingerboard is parallel to the horizontal line of the panel.
(3) At the joint between the handle and the box, the classical guitar should be at the twelfth grade, and the folk European guitar should be at the fourteenth grade. Stick together tightly.
(4) The fingerboard of classical guitar should be straight and smooth, and the fingerboard of folk guitar should be curved. Should also be smooth, no string collision phenomenon.
(5) The installation position of the chord shaft should be correct, symmetrical from left to right, elastic and flexible, and the rotation adjustment should be moderate.
(6) The edge of the * * * speaker, around the sound hole and on both sides of the fingerboard shall be smooth and free from burrs and roughness.
(7) Fingerboard, chord code and * * * chin shall be glued firmly, tightly and straight without degumming and cracks.
(8) Line drawing, line embedding and silver inlay shall be smooth, uniform, clear and beautiful.
(9) The pillow string code should be aligned with the fingerboard, and the spacing between the six strings should be even. The height of the strings and fingerboards should be appropriate and the feel should be good. The height of strings and fingerboards shall meet the following standards: the first product is 1- 1. 5 mm, the twelfth fret is 4-4.5 mm (the sixth string is relaxed to 4.5-5.5 mm). Steel strings are lower than nylon strings.
(10) After the strings are calibrated to the standard tone, check whether all scales are accurate, harmonious, uniform in tension and comfortable to touch.
(1 1) No touch or noise.
(1 1) Hold the neck and strings with your left hand, and tap the panel and backboard with the second joint of your right index finger. The voice should be firm with a * * * tone. There should be no loose noise of degumming.
, the color is uniform, all kinds of accessories are coordinated, with colored Luodian or ivory decorative inlay.
The shape of the intermediate piano is very similar to that of the advanced piano, but the process is simpler. There are simple inlaid lines in the middle seam and four sides of the back plate of the piano body, and the wooden patterns are rare, but the surface is still smooth and the technology is fine.
Generally speaking, the general piano is not inlaid, but there are lines or flowers to improve the artistry. The paint is spray painted, and the smoothness of the piano body is worse than that of the advanced piano.
3. Identify from the sound quality
This is the most difficult one. Sound quality is an abstract subjective feeling, which is related to the reflection of the surrounding environment, the player's skills, the accuracy of tuning the strings, hearing and so on. To make a comprehensive evaluation, here is only a general description.
The timbre of advanced piano is unified and harmonious regardless of high, medium and low. The treble is bright and clear, the midrange is gorgeous and soft, the bass is powerful, the strong sound is solid, the sound quality is pure and noiseless, the pronunciation is sensitive and loud, it is easy to produce sound when hitting, the lingering sound is long, the transmission is good, and the whole range scale is accurate.
The intermediate piano has relatively uniform timbre, sensitive and loud pronunciation, accurate scales and no noise.
The general piano scales are accurate, the pronunciation is loud, and there is no obvious noise.
4. Quality inspection methods and requirements
Whether advanced, middle school or ordinary guitar should meet the following requirements:
(1) The center line of the piano head and the center line of the piano box should be in a straight line.
(2) The handle should not lean forward or backward, and the horizontal line of the fingerboard is parallel to the horizontal line of the panel.
(3) At the joint between the handle and the box, the classical guitar should be at the twelfth grade, and the folk European guitar should be at the fourteenth grade. Stick together tightly.
(4) The fingerboard of classical guitar should be straight and smooth, and the fingerboard of folk guitar should be curved. Should also be smooth, no string collision phenomenon.
(5) The installation position of the chord shaft should be correct, symmetrical from left to right, elastic and flexible, and the rotation adjustment should be moderate.
(6) The edge of the * * * speaker, around the sound hole and on both sides of the fingerboard shall be smooth and free from burrs and roughness.
(7) Fingerboard, chord code and * * * chin shall be glued firmly, tightly and straight without degumming and cracks.
(8) Line drawing, line embedding and silver inlay shall be smooth, uniform, clear and beautiful.
(9) The pillow string code should be aligned with the fingerboard, and the spacing between the six strings should be even. The height of the strings and fingerboards should be appropriate and the feel should be good. The height of strings and fingerboards shall meet the following standards: the first product is 1- 1. 5 mm, the twelfth fret is 4-4.5 mm (the sixth string is relaxed to 4.5-5.5 mm). Steel strings are lower than nylon strings.
(10) After the strings are calibrated to the standard tone, check whether all scales are accurate, harmonious, uniform in tension and comfortable to touch.
(1 1) No touch or noise.
(1 1) Hold the neck and strings with your left hand, and tap the panel and backboard with the second joint of your right index finger. The voice should be firm with a * * * tone. There should be no loose noise of degumming.
..... choose the two most important points of the guitar, 1, pitch, play the same scale in different positions, listen carefully, team up, or test with overtones. . . . 2, feel better, in the case of playing or not, the closer the strings and character, the better. . . . . . . . You should know more about different models, different prices, compare more, and then choose a good one to buy, and tell the boss that you should be able to buy a satisfactory guitar after buying it. . . . Online shopping guitar is cheap and of good quality. . . Because all musical instruments and physical stores will be purchased from manufacturers, the price will definitely be higher, because there are taxes, personnel salaries, utilities and other expenses, and some of them are directly sold by manufacturers online, that is, ex-factory prices. However, it should be noted that the guitars bought back must be played and tested by excellent violin teachers, and those that fail the test must be returned or refunded. If you watch it carefully on the Internet, you can definitely buy a satisfactory guitar. It should be noted that there are also online buyers who buy fake guitars, shoddy them, or hit them. . . . . The quality of the guitar is not entirely determined by the price. Your current situation is not to consider the price of guitar, but to buy a qualified, normal and popular guitar to learn guitar. When you master more guitar skills and knowledge, you must choose a single-board guitar to play. . . . . I can definitely tell you that it is totally possible to practice with a popular guitar. People with high level can also play guitar music with the same difficulty. The price of a popular guitar is generally between 300 and 700. . In fact, the beautiful pronunciation of guitar is by no means something you can master quickly. You must be skilled and find an excellent teacher to tune the guitar to the best condition. You should learn all the knowledge about guitar. . . . . If you like music and guitar, you should treat the guitar as your lifelong friend, not for a month. . . . Look at my article about learning guitar. . . . . . The guitar division of the left hand is like this. Finger, middle finger, ring finger and little finger are respectively responsible for the pronunciation of a character. For example, at the 1 position, the index finger, middle finger, ring finger and little finger are responsible for pressing the 1 character, the second character, the third character and the fourth character respectively, which are used to play the melody. When playing harmony, the left hand should press the strings according to the fingering, which is convenient, concise and scientific. . . . When playing a melody, the left hand presses the string and the right hand plays the string. . . When the string of the left hand is pressed, the right hand can make a beautiful sound. If the strings can't vibrate, it means that your left hand or right hand accidentally touched the strings being pronounced. If you play with your right hand, you can't make a sound, which means that your left hand presses the string on the metal character or the force of pressing the string is too weak. . . . Learn the staff. You can play 1234567 by learning and practicing scales by comparing the position of the guitar fingerboard with the notes of the staff. . . . . . You can enter the guitar in Baidu video and find the video of learning guitar. Learning guitar is easy to take detours. You must be diligent in thinking, get in touch with excellent guitar teachers and masters, or ask people who know music for music knowledge. Never hold the guitar, find some solos, deduct 6 lines of music, and practice hard behind closed doors according to the position of your fingers. . . . . . . Guitar has beautiful timbre, rich harmony, flexible playing skills and lyrical romance. This is a beautiful enjoyment in the world. It is a movable piano, but many people learn it in the wrong way, resulting in the largest number of people learning guitar, but few people can put this instrument on an elegant stage. . . . . . . . . . . . Buy classical guitar books with the staff of the regular music publishing house to learn. Some books are misleading. Novices have no ability to distinguish and are prone to detours. . . . First of all, you may find it difficult to compare the notes on the staff with those on the guitar fingerboard. In fact, the notes on the staff will never change position. If you study guitar and the staff of fixed notes, you will feel relaxed and simple. At first, it may be difficult to understand the notes on the staff and the position of the guitar fingerboard slowly, but as long as you insist, because they are fixed, after a long time, you can recognize at a glance that any note on the staff corresponds to the guitar. . . . .
There are two important points in learning guitar. 1 is the basic skill of guitar playing, including finger independence and flexibility. With skill, music begins, otherwise it is noise. 2. Learn the knowledge of the staff, combine the notes on the staff with the position of the guitar fingerboard, learn with fixed tunes, and cultivate solfeggio and musical sense. . It will make great progress to effectively combine playing guitar with learning music. . Grasping the scale and chord of each sound firmly is the basic skill. . . . There are many friends who learn guitar, but most of them are wrong, wasting time and energy. Guitar requires independent and flexible hands. When you are not practicing, you can do more finger exercises, strengthen finger flexibility, and train fast scales on the guitar. Don't practice the piano for too long at a time. Practice playing monophonic melody. When you see the score, immediately play the melody with the correct rhythm, and then train the chords. This means training scales and chords every day. With this foundation, you can solo some simple sketches and play songs relatively easily. Remember to combine learning guitar with learning music organically, and pay attention to highlighting melody and harmony. As long as you practice in the right way, you can achieve your goal completely. As long as you study hard and master the basic guitar playing skills and music theory knowledge, you will make rapid progress. I wish you progress in your study. Hope to adopt ~ ~ ~ ~ ~ ~