...I have two still un-answered:

3'                "And why should I
                   Call your name
                   When you're to blame
                   For making me Blue"

hint 1:   is more R'n'R than folk    hint 2: by only 'ethnic' singer named in this quiz

6'                "Talk about your plenty, talk about your ills,
                   One man gathers what another man spills."

hint 1: likely known mostly by their faithful fans    hint 2: group played 3500+ live concerts

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...some new ones:

7'   "Knowin' that you lied
       Straight-faced while I cried"

8'   "It's what you look like
       and not what you are"

9'    "These are just some sorry kids
       ... they ain't the ones"

10'   "You would stand to gain and I to lose"

11'   "She's a gal with a portable past"

12'   "I think we'd be better off
         ta just run her off this place"