Hello Maruška and thank you for your notes!
I really appreciate it. I am glad that you wrote such positive comments.
Thank you for adding the principle, I will definitely add it to my observation sheet. And about the errors, I have to agree with you, that it depends on the teacher, but it is still a part of the method in my point of view.
I really find the music in the classroom as an advantage but I am not sure if I would be able to teach like this. :D But I would surely like to try it.