About applying for a piano teacher

2. An etude that you think is appropriate, one of Bach's two or three songs, a large piece of music (such as the first movement of Mozart xx), and the last song that is not too difficult (romantic or 20th century, you can skip it).

3, it depends, to

4. Some places need it and some places don't.

5, no need, just need to know the duration, rest, time signature and so on of the notes.