What is the meaning and theme of the song "stronger (what doesn't kill you)" by kelly clarkson

The meaning and theme of the song "stronger (what doesn't kill you)" by kelly clarkson is that all the trails and tribulations (also know as hard times) that you face through your life help you claim experience, wheather it's you learning from your mistakes or learning what to do or what not to do the next time the situation happpens, you always learn something new in every challenge.

including the octave, the answer would 8 notes in a major scale with one note being played twice. ex) c major scale includes: c, d, e, f, g, a, b, c

notice that c is played twice

however, if you were to ask me how many different notes are in a major scale- the answer would be 7.