What makes a song culturally historically or aesthetically significant

The uniqueness and creativity of creating a new type of music that surges the music forward, a new choreography type, different ways of using beats and times, and then the voice itself. (culturally significant music artists include Prince, Elvis Presley, Frank Sinatra, and Madonna)

(hope this helps!)

Hm, I'd argue that any song that makes change, that makes you think, anything that has a great impact on youth would also be significant. So a good example of this in the past would be anything by Motzart. For something more modern my chemical romance (which yes i know but here me out) as it had a very significant impact on youth and the culture we where raised in. (you'll find actually most music that rebels could be considered important in some way)

As for aesthetically, anything you put your heart and soul into has its own significance. Meaning any song that means anything could have that aesthetic factor as part of it.

(Hope this helped!!!)  

the answer is c my brotha. c.   formed an alliance with the soviet union.