Build a musical arrangement using the indicated alphabet-based system and the given motif.
X:1
L:1/8
Q:1/2=90
M:2/2
K:G
['key/time GDDE GABG AFED ABcA BGGA BcdB']  
X:1
L:1/8
Q:1/2=90
M:2/2
K:G
"_No key/time sig" GDDE GABG | AFED ABcA | BGGA BcdB | cA dB G2 G2 ::  