Compose a piece using the alphabetic notation of the assigned musical structure and the provided melodic motif.
X:1
L:1/8
M:4/4
K:A
['ecea fagf', 'efga f2 B2 B2 B^A Bc^de fgab']  
X:1
L:1/8
M:4/4
K:A
 cd | ecea fagf | ecea fagf |1 efec dedB | cdcA B2 :|2 gbge faf^d | e2 g2 e2 |: cB | ABcd efga | 
 f2 B2 B2 B^A | Bc^de fgab | g2 e2 e2 cd | ecag fedc | dBba gfed | cecA BdBG | A2 c2 A2 :|  