You can buy the "Mystery Garden" series of light music scores. The skills are not difficult and pleasant to listen to. However, not all the music in a book can be used in coffee shops. Usually pay more attention to some soothing violin light music, remember the names, and then look up the scores on the internet and print them out. Or you can directly find other runners to make copies. As for the salary, it depends on the place and place. . . I am in Wuhan. The cheapest venue for "booking venue" (running almost every day for 365 days) is 80 yuan /2.5h, and 50 yuan/1h's wedding. On holidays, the venue price is higher, ranging from150 to 300. Either someone recommended you to go (tell you the news), or you personally recommended yourself to register with some wedding companies.