The earliest surviving opera was written by

I'm working on an assignment that has to do with digital art and this is my masterpiece that i've worked on. i was wondering if anyone knew any websites that i could possibly sell my digital artwork? i'd be very appreciated and will gladly mark the right website that does sell digital art as well brainliest! you!

What is an emphasis or stress placed on a note called?

How can you open a chest that is beyond, but adjacent to the world border?