Formulate a musical piece by utilizing the specified motif and alphabet-based structure.
X:1
L:1/8
M:6/8
K:G
['G2 B AFA DFA ded', 'GBd g3 gfe f3 fed e2 d']  
X:1
L:1/8
M:6/8
K:G
 GBG G2 B | AFA DFA | ded cBABGB AFD | G3 G2 B | AFA DFA | ded cBA | GAG G2 D | G3 G2 B | AFA DFA | 
 ded cBA | B3 AFD | GAG G2 B | AFA DFA | ded cBA | GAG GBd |: g3 gfe | f3 fed | e2 d efg | 
 eag fed | gdB Bcd | ecA A2 g | fed cAF |1 GAG GBd :|2 GAG G2 D ||  