Update:
1. After some attempts, the developer finally simulated Erhu playingːlunar2019crylaughingpigː. Now you can right-click on the chair, or right-click on the Erhu to play it. The scale of Erhu is set according to the traditional Chinese scale (C D E G A, no F and B). Even if you have no experience playing musical instruments, it will not be too unpleasant.
Notice:
After a series of updates, the developer suddenly discovered that this game should be renamed to "Stall Simulator"! Calligraphy stalls, Chess stalls, and Erhu stalls are all popular street stall projects on the streets of the small county town in Chinaːlunar2019crylaughingpigː. By now, the summer study scene has been completed! Next, because there are new projects to be developed, the developer will update and make the winter scene at the end of the year. Hope you can understand!