I disagree with this statement because as an adult I love music and I find that every person no matter what age they have, they love music too !!! it's crucial especially if we are English teacher, its something sticky!
I disagree with the second statement because sooner or later the students are going to get boring and we should prevent this.
I do not prepare extra exercises for my children the only reward I do is when they finish I give them a 5-minute break to go to the playground.