Piano waxing:

First dust off the surface of the piano, then wipe the finger prints with cotton cloth, then add piano-specific brightener or Bili beads to wipe it. Rub in circles, remember not to use too much polish.

The piano (Italian: pianoforte) is a keyboard instrument in Western classical music. It consists of 88 keys (52 white keys, 36 black keys) and a metal string soundboard. Italian Bartolomeo Cristofori (1655-1731) invented the piano in 1709.

The piano range ranges from A2 (27.5Hz) to c5 (4186Hz), covering almost all tones in the musical sound system. The piano is generally used for solo, ensemble, accompaniment and other performances, and is very convenient for composing and rehearsing music. The performer presses the keys on the keyboard, moves the felt-covered mallet inside the piano, and then strikes the steel strings to produce sound. The piano requires regular care to ensure that its tone remains unchanged.