Create a musical composition based on the alphabetic representation of the predetermined pattern and the given melodic theme.
X:1
L:1/8
Q:1/8=232
M:4/4
K:D
['FG AB cd ef']  
X:1
L:1/8
Q:1/8=232
M:4/4
K:D
|: A2 | d2 fd B2 dB | AB AG FD D2 | FG AB cd ef | eB Bd c2 A2 | d2 fd B2 dB | AB AG FD D2 | 
 FG AB cd ef | eg ec d2 A2 | de fg a2 fd | gf ed cA Bc | de fg a2 fd | eg ec d2 A2 | de fg a2 fd | 
 gf ed cB AG | FG AB cd ef | eg ec d2 :|  