Hey everyone listen to this (in ze comments)

In which quotes does the author use the word "chains" literally? in which quotes does she use the word figuratively?

In 1907, the retrospective on the work of 19th century post-impressionist georges seurat influenced the development of cubism in a radical way through his painting titled, “sunday afternoon on the island of la grande jatte.” ? ?

Explain briefly why it's to choose a chord progression before developing the harmony.