Compose a piece of music that follows the specified structure and incorporates the given theme.
X:1
L:1/8
M:6/8
K:E
['B2 g fec', 'c3 cBa g2 e'  
X:1
L:1/8
M:6/8
K:E
 B2 g fec | e2 g age | B2 g fec | efc ecA | B2 g fec | efg aga | b2 g eBc | efg f2 e :| c3 cBa | 
 g2 e fgB | cBe Bc/d/e | agb geB | c3 cBa | g2 e fga | b2 g eBc | efg f2 e :|  