Formulate a musical piece by utilizing the specified motif and alphabet-based structure.
X:1
L:1/8
Q:1/4=120
M:6/8
K:G
['G2 G G2 g dBG GAB', 'd dBd dBd efg gfe']  
X:1
L:1/8
Q:1/4=120
M:6/8
K:G
 D | G2 G G2 g | dBG GAB | cGE EFG | AFD DEF | G2 G G2 g | dBG GAB | cEA FE"^sic"E | G3 G2 :: d | 
 dBd dBd | efg gfe | dBd dcB | AFD D2 d | dBd dBd | efg gfe | dcB AGF | G3 G2 :|  