Which part of brain does Enka stimulate?

Right brain is activated by music,art,emotion,and feelings.

Left brain is activated by words,calculation,and analysis.
 
But I have read an newspaper article which says Japanese people listen to Enka by left brain though the Japanese also listens to the classical music by a right brain.

Enka is Japanese traditional style ballad.
 
For me,enka　is very(maybe most) emotional compared to other genre of Japanese songs.So I donnot understand why enka stimulates the left part of brain.
 
But possible explanation is this:Japanese people mainly listen to the WORDS(lyrics) of enka,not the melody.Therefore left brain is activated.
 
I wonder which part of brain of non-Japansese people get activated when they listen to enka.
 
Maybe it depends on how well they understand Japanese.