Which term refers to the various euro-american musical sounds, repertory, ensembles, and concepts that have had a significant impact on music around the world?

The answer is "Western music".

Western music efers to the music which is created in Europe and also those musics got from the European from antiquated occasions to the present day.  

Western Music alludes to those societies whose music framework depends on the reasoning and investigation of Pythagoras and his school. The Ancient Greeks were the principal European culture to examine the study of acoustics utilizing science and basic logical lab instruments like the monochord.

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