Compose a musical piece using the designated musical pattern's alphabetic representation and the assigned melodic theme.
X:1
L:1/8
Q:1/4=180
M:6/8
K:G
['GBd cec E2 E', 'AGF G2']  
X:1
L:1/8
Q:1/4=180
M:6/8
K:G
 B2 B GBd | cec E2 E | F2 F DFA | GBe d2 c | ABB GBd | cec E2 E | EFF DFA |1 GBA G3 :|2 
 GBA G2 A/c/ || d2 d def | gbg d2 g | f2 f A2 B | cec B2 c | d>e^c def | gbg d2 g | fed cAF |1 
 AGF G2 B/c/ :|2 AGF G2 B ||  