Compose a musical piece in accordance with the outlined theme and structure.
X:1
L:1/8
M:6/8
K:G
['B (Bc)B AGF GFE ^D2 D E>FE']  
X:1
L:1/8
M:6/8
K:G
 B | (Bc)B AGF | GFE ^D2 D | E>FE GFE | DEF G2 A/G/ | FED D>ED | D>ED d2 ^d | eBB c>BA | 
 B>AG A>GF | E3 B3 | A>GF E2 x |]  