I'm not sure what piece you're talking about, maybe you could include a picture of the piece
but in the treble clef the e's are on the bottom line, and top space
if it's flat it'll have a little squished 'b' next to it
a flat e is also a sharp (#) d
A. Foreground
B. Middle ground
C. Background
Technique - Perspective drawing
It decreased the production of clay vessels.