Answer: C. Before beginning the engraving, the artist must apply a thin layer of acid to the metal surface on which the engraving will be done.
Explanation:
<span>A key signature is most helpful in determining the "root and the scale used" a piece of music. Other purpose of key signature is that it tells you what key to play in order to avoid accidentals. Accidentals are symbols that modifies the pitch of the note, either making it into a sharp, a flat.</span>
It's clearly obvious here...
Earfquake is the better song. In my opinion at least as a meme guy I enjoy that one more. :/
He was a patron of the arts