Design a musical composition incorporating the alphabetic expression of the chosen structure and the provided melodic theme.
X:1
L:1/16
M:3/4
K:C
['dd e8']  
X:1
L:1/16
M:3/4
K:C
 z2 dd | e8 dedecdcd | A12 | c2A2 | d6 cd A6 dd | e8 dedecdcd | A16 decA- A6 dd | e8 cdcd | 
 A16 decA- A6 dd | e8 dededdcB | A12 | AB A6 z2 dd | e8 dedecdcd | A16 deded>dcBA2z2d>ede | 
 e8 ddcB | A12 | d>eEG A4 cB A6 d>ededez2d>dcBA2z2A2ed | e8 dedecdcd | A12 |]  