Compose a music piece that includes the specified motif while adhering to the outlined alphabetical sequence.
X:1
L:1/8
Q:1/2=75
M:2/2
K:G
['GBGB GB', 'gfe dc']  
X:1
L:1/8
Q:1/2=75
M:2/2
K:G
 GBGB GB (dA/G/) | FAFA FA (cB/A/) | GBGB GB (cB/A/) | cBAG FA | G/G/G G2 ::"^as writ" gfe dc Bcd | 
 gfe dc Bcd A2 | gfe dc BG d2 | cBAG FA G/G/G G2 :|  