Numbers 4, 7, and 12 have parallel sentence structures. You can tell because the forms of the verbs are consistent: all -ing verbs, or all infinitive (to...).
The overall texture of the final couplet of Josquin's ave maria virgo serena is : Homorhythmic texture
you can prove this by seeing the "sameness" of rhythm in all parts of Ave Maria Virgo serena
It emphasizes the large number of people that posts on social media can reach. It suggests that people aren’t being honest online when they upvote or downvote posts. It shows how the actions of people on social media can sway the actions of other users.
Hope this helped!