For the damper installation, the current user should first look at the instructions inside the piano cover, and follow the instructions as much as possible. If possible, don't move the rollers away from the original factory-set point during tuning. Because of the movement of the rollers on the angularly-varying roller plate, the distance between the strings and the damper head changes, and whether it is raised or lowered will affect the damping effect.

If you accidentally change the effect of the damper adjusted before leaving the factory, you can adjust the height of the small spring on the damper head with long-nosed pliers to ensure that the distance between the strings and the damper head does not change. The pitch of the shaft height is the same, and the fine-tuning process is completed to restore the factory standard.

Usually professional tuning tuners have pointer type, indicator type and other models, and the use methods are also different. However, the method of pronunciation proofreading of each tuner is mainly based on comparison and judgment, that is, tuning is performed by the method of sound ratio. However, the pronunciation function settings of the tuner often only have the pitches of a group of C1 to C2, and will not have the standard pitches of other sound areas. At this time, it is necessary to judge and compare the pitch of other sound areas according to the pitch of this group, and then expand it upward and downward according to the pitch of this group.

Another method is to use the pointer on the tuner to measure the pitch frequency (measure the value of vibration hertz), and use the value of the pointer displayed by this function to determine the level of the sound. You don't have to look at the tuner pointer for every tone, but you can use your hearing to complete the tuning. You can check the key places with the tuner.