Construct a musical composition following the given alphabetical structure and incorporating the specified motif.
X:1
L:1/8
M:2/2
K:G
['GABG A2 A2 GABG E2 E2 GABG', 'dgdB AGAB']  
X:1
L:1/8
M:2/2
K:G
 GABG A2 A2 | GABG E2 E2 | GABG AGAB | GAGE D2 D2 :: dgdB AGAB | dgdB E2 E2 | dgdB AGAB | 
 GAGE D2 D2 :|  