Musical acts that open for big name performers, to use a Rodney Dangerfield phrase, ‘don’t get no respect.’ That’s mainly because the audience is so anxious for the headliner to take the stage that they mostly ignore the opening act. I wasn’t paying much attention to the opening act when [simpleazon-link asin=”B00864489G” locale=”us”]Rebirth[/simpleazon-link]’s Rivers Crossed Tour stopped at Howard Theater in the Nation’s Capital a few weekends ago. And even...