To draw and execute the foreign language pop song teaching into the ordinary university public music education, First, it conforms to The Times requirements and music itself characteristics.
Virgin-soil epidemics are those in which the populations at risk have had no previous contact with the diseases that strike them and are therefore immunologically almost defenseless.
None of this means that what is popular is stagnant, but even dramatic shifts in opinion and political leanings follow a typical pendular pattern, reactively swinging back and forth.