The correct answer is serialism.
This means that different values, or series, are used to create various musical elements, and thus eventually a complete musical piece. The first person who started this method was Arnold Schoenberg in the 1920s, although other people perfected his work afterwards.
(I do not have access to a camera on my computer, but hopefully i am not too terrible on making digital art. Here is a rough perspective of how it should look. The drawing shows how the smaller circle is farther away from the bigger ones)
Answer:
Music was something he loved, to inspire kids im sure.
Explanation: