Formulate a musical piece by utilizing the specified motif and alphabet-based structure.
X:1
L:1/8
M:6/8
K:G
['c |:S', 'EDE GED D2 c', 'D GAG G2 B ded d2 c']  
X:1
L:1/8
M:6/8
K:G
 c |:S BGE EDE | GED D2 c | BGE GAB | cBc edc | BGE EDE | GED D2 c | BAG AGE | G3 G2 || D | 
 GAG G2 B | ded d2 c | BcA GBd | e2 f g2 D | GBd gfe | dec BcA | BGE GAB |1 c3 B3 :|2 dBc edc ||  