Earlier quoted context omitted.
Not as far as copyright law is concerned. If you then use your brain to write it back down—or sing it as a song in Central Park—now you have created a copy under the law.
Right. But the comment above said the issue is with the copy made for training. The "read it and memorized it" copy, not the "write it back down" copy.
Whether that copy was fair use is the key question.