Don't forget to drink more water when you are busy with your work. There will be a "da" sound every half hour, just like someone reminds you to drink more water and gently put a cup "da" on the table. (Although my mother would only scold me that I didn't drink water all day, the kettle was full of water. When I came out, I would drink more water and no one would remind me.). It's a very simple composition. Cup, to drink more words, three sound holes, "da" one. The combination is: drink more water... "da". A small theater (?) Hey hey hey.