Design a musical creation that involves the supplied motif and respects the established alphabetical structure.
X:1
L:1/8
M:4/4
K:A
['ecea fagf', 'e2 (cB) ABcd efga f2 B2 B2']  
X:1
L:1/8
M:4/4
K:A
 (cd) | ecea fagf | ecea fagf | efec dedB | cdcA B2 cd | ecea fagf | ecea fagf | gbge faf^d | 
 e2 g2 e2 :: (cB) | ABcd efga | f2 B2 B2 (B^A) | Bc^de fgab | g2 e2 e2 (cd) | e2 ag fedc | 
 d2 ba gfed | cecA BdBG | A2 c2 A2 :|  