The aspect of of instruments that improved during the Romantic period was the valves. The correct answer is D, valves.
Having a pretty good day! Thanks for asking!
It's a fan choice for the artists who are involved in making their music available on streaming services. It's a choice by the record companies that represent the artist.
There's no fashion if nobody buys it basically means that if no one wants it then it's probably not very good or that if no one buys it then it's just trash and you should throw it away.
Vanitas is a still-life painting style from the 17th century that depicts death with different objects, so D would be the correct answer.
