The pipa is the first plucked instrument, a plucked stringed musical instrument. Wooden, the speaker is half pear-shaped, and the top is equipped with four strings. It was originally made of silk thread, but now it is mostly made of steel wire, steel rope and nylon. The neck and the panel are used to determine the phase and frets of the phoneme.

The commonly used tuning method is tuning tuning, which is to fix the four strings from winding to sub-strings to four notes of A, d, e, and a. That is the key of C. Beginners should learn the key of D first, and the tuning is based on the key of D.

An electronic tuner can also be used. Turn on the tuner, select the mode as lute, put the clip on the fret, and strum the strings to see the measured pitch. When the pitch is correct, look at the pointer. The pointer to the left indicates that the pitch is low, and the string should be tightened; the pointer to the right indicates that the string is high and should be loosened.

Tuning skills: Insert the big finger into the string groove, push it as far as possible when twisting, the amplitude should be small, do not twist a lot at once, it is easy to break the string. Or put the piano horizontally on the leg and adjust it (similar to the feeling of playing a guitar). If the piano shaft is easy to slip, you can use chalk powder on the contact part of the piano shaft and the shaft hole to increase the friction and achieve the effect of anti-slip.