Do modern performers have the freedom to interpret music from the past in ways that the music original music composer had not intended? May we use modern instruments? Place operas in modern settings? Use female voices when male voices would have been used?

for a singer or instramental performer the proces of deciding how to perform music that hase been previously composed and noted is termed interpertatinon.

from the word list given, the most suitable words that relate to the reason information were written would be:  

objectivity: lack of bias, judgment, or prejudice

accuracy: free of mistakes, to be correct

authority: the ability to tell people what to do or believe in

content: to be satisfied  

it can be said that the author made the article to present objectivity, to provide accurate information, to be the authority in the subject that he or she writes, and to be satisfied of the information quality given out.