You have individuals before creativity. In that sense, foreigners are much more individual. Japanese people lack creativity, but I think education can make the difference. If education is not done correctly, it takes time to develop creativity. In that case, we have to wait for geniuses to appear.
Any country can wait.
If Japan can make good use of its diligence and hammer out good educational methods, Japanese people can be creative too. I'm confident that they can be creative in music. If we place priority on developing individual personalities, then musical education will go well too. You need teachers with strong personalities to help students develop their own personalities during their formative years. You need good teachers to teach junior and senior high school students to compose, conduct and sing.