The idea of using music to support learning is great, but this is an example of how not to do it. The music is really annoying. One bit seems to be mostly drumming. The Accelerated Learning people used to insist that Baroque and Indian classical were the only types to use. That may be a bit narrow, but this music is just trash.
Also, the textbook puts the Pinyin Romanisation in tiny print, but an unecessary and woefully inaccurate "pronuciation" guide in large print. (E.g., it represents "x" and "sh" as the same sound.) Pinyin is an accurate guide. Nothing more is needed, and anyone who can't learn quickly is too dumb to learn anything.