'Mother' introduces slightly more intricate strumming patterns and a few quick hammer-on/pull-off sections. Listen for the distinct guitar riff and try to anticipate the note changes. The chorus is a good opportunity to activate Star Power if you've accumulated enough. Maintain a steady strumming hand and focus on the transitions between different fret buttons. This song will test your ability to keep a consistent rhythm while adapting to minor pattern shifts. Practice the main riff until it feels natural.
