Rubbing rosin doesn't seem like a big deal, but there are many things to pay attention to. It is a very important prerequisite for playing Erhu.

From the more old-fashioned way to burn the rosin on the piano barrel, to the more scientific method of rubbing the rosin directly on the bow hair, in fact, first of all, the rosin should be bought with good quality, and the rosin other than those specially used for musical instruments should not be used. When I was a child, I used rosin for industrial use because of convenient conditions. Now when I think about it, it is not acceptable. There are a lot of impurities in it, which is not conducive to the sound purity of the erhu and the protection of the bow hair. Later, all the rosin used for musical instruments was used.

The special rosin is also of poor quality. Some feel that it is easy to get on the bow hair when rubbing it. However, as long as you pull it for a while, the powder will fall down and the string will not hang. This is also not possible. (The bow hair has been aged and used for a long time, and this situation will also occur) Rosin, it is better to choose a mid-range or above.

Rosin should not be rubbed too much, but not too little. To rub evenly on both flat surfaces of the bow hair. It is best not to go down to the ground at once, but to swipe back and forth in a large area, which will not be consistent in strength, and will loosen the bow hair and even break the hair in the future. If the rosin quality is good, in fact, it does not have to be very hard to rub it on.

When the rosin block is in use, I see many people always rubbing it in one place. Slowly, the rosin block has a long and deep groove. This is very bad. , when the power is large, it will be disconnected, and when the size is small, sometimes it is not easy to use. Especially for beginners who have a small yearbook, there will be a lot of rosin at home. It is best to keep the rosin in a block shape. You can change the position every time you wipe it, and it will not be broken. If you use it in this way, the rosin block will last for a long time. It is also very convenient to hold in hand. Don't push too hard and always rub one spot as well. Beginners, especially those with smaller annual records, should pay more attention to this point.

When the rosin is rubbed to play the piano, the bow hair feels that it can hang the strings, and a full bow is pulled and pushed down. The sound is not caused by the amount of rosin. If you rub rosin before going on stage to play, it is very particular, and it is better to rub less than too much. Because, after the rosin gets on the bow hair, it needs to be played for a while or even longer, so that the rosin and the bow hair can have a better and in-depth combination. This is a lot of people with erhu experience. There is less rosin in the bow hair. When re-rubbing the rosin, it is an important experience that it is better to pull for a while at the beginning. My feeling is that when the rosin is not too much or not, even the day before or in the first few hours, the vibration of the erhu is at its best, because, At this time, the rosin powder is evenly distributed in the small burrs of the bow hair, and no more rosin powder affects the pronunciation of the erhu. When it acts on the strings, the sound is the cleanest. The volume is not too small. The performance is the best.

In this case, when performing on stage, especially when recording songs in a recording studio or a recording studio, it feels the best sound state. Of course, this point, according to the situation, slowly pondering when is the best time. Because under the premise of playing with amplifier equipment, it is very important to be able to get the rosin into an optimal state. Otherwise, in the case of amplification, while it beautifies the sound, it can actually show more of the possibility of noise. So, I don't think too much rosin should be rubbed before the official performance. It is easy to play strong and weak, and it is enough to hang the strings. Avoid the noise and sticky strings caused by too much rosin. This is especially important when playing in amplified mode.