nope but i did get like 9.5/10 in my trial
for intro, have a broad statemetn about music, about how the particular concepts that are targeted contribute to its integrity/the purpose of creating interest/a certain mood. just something that broadly covers the significanec of this concept and how it broadly appleis to all the eras that are mentioined in the question.
also obvs introduce what pieces youre doing, their publish dates, points of difference and ismilarities.
i like to do each piece in a separate paragraph, touching on different dimensions of the concepts asked. a simple example is if it was dynamics i would pick my musiical quotes and specific dynamics that highlight sadness in one piece as that is that piece's central mood or programmatic idea. then i would say "contrastingly, ____ augments this use of dynamics, using the broad wells of volume with the light staccato as a marker of happiness blah blah"
and yeah
dont forget a conclusion too