Create a musical composition based on the alphabetic representation of the predetermined pattern and the given melodic theme.
X:1
L:1/8
M:6/8
K:Amin
['', 'cAA eAA cBA', 'efg a3 age']  
X:1
L:1/8
M:6/8
K:Amin
 AB |: cAA eAA | cBA edc | BGG dGG | gfe dcB | cAA eAA | cBA efg | age dcB | cAA A3 :: efg a3 | 
 age dBG | GBd g3 | egd BAG | efg a3 | age efg | age dcB | cAA A3 :|  