The answer is known as Gwion Gwion.
OK.....
I believe your answer would be C I think
EHHH......
H0P3 It H3LPS :)
You look like my Chinese friend, ug lee
I am thinking C: <span>the beginning of a composition the pitch of a composition</span>
A double barline happens
<span>Before a key change<span> During an overall change of style; or before a chorus or bridge</span><span> Before changing the time signature mid-line. If the change occurs mid-measure, a dotted double bar is used; see image.</span></span>