How do I get a specific value with the grep command?

I have a text file with the following content, summarizing:

{ "track": 1, "name": " 127 O verbo ",   ...    " },

{ "track": 2, "name": " 128 A luz ",   ...      },

I would like to just get the value of name

which in the example above would be

127 o verbo
128 A luz

How can I do this using grep command?