Anyone who studies Erhu knows that rosin is an essential auxiliary material for playing erhu. In modern erhu, rosin is applied to the bow to increase the friction of the bow hair, increase the friction on the strings, so that the erhu makes a normal sound, basically, if the rosin is not properly applied, the friction of the erhu bow on the strings is usually slippery and difficult to make a sound, so it can be said that the auxiliary material of rosin is crucial for the erhu. So how to use rosin, rosin on the erhu bow service life and what impact? How to apply rosin to make Erhu sound better?

The most popular use of rosin is "rubbing", that is, the rosin is repeatedly wiped on the bow hair, generally speaking, a good incense, this bow should be able to play normally for about an hour. In the early erhu, the rosin will be burned on the cylinder, if the erhu master plays, it will form a thin line on the track, if the level is not good and the skill is not high to play due to the lack of bow skills, then there will often be a situation of scattered rosin, which is the so-called "can pull a line, not a large piece of" the origin of the saying. Yuanzhen 8006 rosin is recommended for good viscosity and less dust. It's a good rosin for professional erhu.

Generally speaking, an erhu bow can not make a good sound after just rubbing the rosin. it needs to be played for one or two minutes to reach its peak state. When we rub the rosin we should be careful not to use too much force, it may break the bow hair.

In the choice of rosin should pay attention to, now the rosin used in Erhu are good quality musical instrument special rosin, and can not use industrial rosin, industrial rosin although cheap and also rosin, but the purity is not enough, often more impurities, not to mention will affect the performance of the bow, and may cause irreversible impact on the bow hair life. Musical instrument rosin also has good and bad mixed situation, relatively poor rosin is often too loose structure easy to wipe but also easier to fall from the bow hair, do not hang the string, such rosin also try not to choose, although it is very convenient to apply very cheap, but consumption is also very fast, it is best not to cobble this convenience.

Many amateur Erhu learners will let the rosin too much on the bow hair, a pull on the smoke everywhere this is not right, first of all, this in the image is not beautiful, pull out the sound often have a lot of impurities, although it can make the piano louder, but overall more than worth the loss.

There is also a common mistake habit of wiping incense is always using one position to wipe, not only a strange habit, it is very bad habit for our daily use of rosin, this habit will make a whole piece of rosin prematurely broken into two pieces, small pieces of rosin will be more difficult to use, so we should pay attention to not use the same position every time we wipe rosin. Using a different position each time, don't let the rosin form a clear mark but let it shrink evenly.

Similarly, the hanging situation of bow hair is also a very important indicator for us to detect the use of bow hair, in the case of rosin quality can be guaranteed, if the bow hair is not easy to hang incense, it can not be used soon after the incense is painted, then it often means that the bow hair is used for too long, the surface is ground flat, and the rosin can not be hung. This time is often a reminder that you need to change the bow hair!