I think that all people in the world has a favorite type of music, they would have a favorite singer or song. As teacher we must to find the way to use music in our class, searching for all ages, for all our students, althougth we don´t use them daily. so, I´m desagree.
I´m agree with the second statement, about to have a sequence in our classes but we can change it by the time for example, not alwas with a song, we can end wih a question. rhyme, etc.
I´m also agree with the last sentence, it is important to have our students busy in productive activities, because if we don´t pay attention on this, we will have problems with their behavior in the classroom, so I think is important in a class.