Compose a piece featuring the specified motif and using an alphabet-based arrangement.
X:1
L:1/8
M:4/4
K:G
['g3 a bgag']  
X:1
L:1/8
M:4/4
K:G
 dc | BGdB c2 dc | BGdB c A3 | BGdB cBcd | ed (3efg fdcA | BGdB c2 dc | BGdB c A3 | 
 fdfa gf (3de=f | ed(3efg fdfa | g3 a bgag | fddf e c3 | g3 a bgag | fdde =f3 d | g3 a bgag | 
 fddf e c3 | d^cd=f edeg | fdfa g4 |]  