Build a musical arrangement using the indicated alphabet-based system and the given motif.
X:1
L:1/8
Q:1/2=100
M:4/4
K:G
['G2 DE G2 e2', 'd2 g2']  
X:1
L:1/8
Q:1/2=100
M:4/4
K:G
 G2 DE G2 e2 | dBAG AFED | G2 DE G2 e2 | dBcA G4 :: d2 Bc d2 g2 | fafd egec | d2 bc d2 g2 | 
 fafc d4 | dgfe dcBA | B2 BG AFED | G2 DE G2 e2 | dBcA G4 :|  