Develop a piece of music using the specified alphabetic notation system and the provided motif.
X:1
L:1/8
M:2/2
K:A
['e2 cA', 'ecac ecBA']  
X:1
L:1/8
M:2/2
K:A
|: e2 cA e2 cA | d=cBA =GABG | e2 cA e2 cA | (ea)ag a2 gf :: ecac ecBA | dB=gB dBA=G |1 ecac ecBA | 
 (ea)ag a2 gf :|2 ABcd eaga | edcB A2 a2 |]  