Military chief, the power to veto laws
Social class known to have small communities and based on knowledge of lifestyle, reputational is what I come up with.
Answer: Original songs share the same lyrics as cover songs, but have different beats, and with that different feels.
Explanation: Big Joe Turner has more elements of the blues and Bill Haley has a rock and roll approach.
Junior Parker also has elements from the blues and soul, and Elvis Presley makes a song more of rock and roll and country.
The original songs have a deep meaning.
Cover versions are a "rip-off" of originals, in a social context. It is a form of cultural appropriation, and sometimes the cover artists becomes more popular and often treated as original creators.
The island location contributed because Japan was practically secluded and shut off from most of the world, giving them an almost neutral environment to flourish (with some influence from China).