Compose a piece of music that follows the specified structure and incorporates the given theme.
X:1
L:1/8
Q:1/8=180
M:2/2
K:G
['BA ||S GEEF', 'EF G2 FG AcBA |1 GEEF G2', '', 'f2 af'  
X:1
L:1/8
Q:1/8=180
M:2/2
K:G
 BA ||S GEEF G2 EF | G2 FG AcBA |1 GEEF G2 ef | gfed B2 :|2 GFEF GABa | gefd e2 ef || 
"^fine" gefd e4 |] g2 bg f2 af | e2 fe BBef | gabg fgag | gfed e2 ef | g2 bg f2 af | e2 fe BBef | 
 ggbg f2 af | gfed edBA"_DS" |]  