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:D
['e2 d c2', 'ABA A2']  
X:1
L:1/8
M:6/8
K:D
 e2 d c2 B | Ace ecA | e2 d c2 A | Bcd dBG | e2 d c2 B | Ace ecA | dfd cec | Bcd dBG :: ABA A2 d | 
 cde ecA | ABA A2 c | Bcd dBG | ABA A2 d | cde ecA | dfd cec | Bcd dBG :|  