Ghost writers in the sky-with diamonds.

The reason for this sudden repentance became clear on Thursday when the ghostwriter revealed himself to be Takashi Niigaki, 43, a hitherto largely unknown part-time lecturer at a prestigious music college in Tokyo.

This reminds me of a time when I had read a couple of Harlan Ellison short stories which I thought were very good. I went on to read several collections of his stories. Many/most were very poor, IMO. I realized that I could probably write a story that would be published somewhere if submitted by Ellison [big time exaggeration to make a point] but also that some of his better stories would be rejected if submitted by me.  
  Will the songs which were enjoyed by so many be forever tainted or will Mr. Niigaki's talent now be recognized amid the anger at Mamoru Samuragochi? Might his songs be judged like counterfeit works of art which pretended to be by someone famous and that took all the talent of the counterfeited artist plus the technical skill to fake the age and yet went from highly valuable to worthless the instant their true origin was discovered? 

Go rent F For Fake by Orson Welles some time.