Construct a melodic piece using the alphabet-based musical sequence and the given motif.
X:1
L:1/16
M:2/4
K:G
['', 'D2 G2>G2A2d2 BdAd BG2D G2>G2A2d2', 'e4{f} e4']  
X:1
L:1/16
M:2/4
K:G
 D2 |: G2>G2A2d2 | BdAd BG2D | G2>G2A2d2 | BGAF G2>D2 :| e4{f} e4 | fedf edBA | d2<d2 fe2d | 
 BGAF G2d2 | e4{f} e4 | gfeg fedB | d2<e2 fe2d | BGAF G4 ||  