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:Edor
['B2 A', 'B2 A', 'BAF E3', 'B2 A']  
X:1
L:1/8
M:6/8
K:Edor
|: EEE B2 A | BEE B2 A | EEE B2 A | FDD BAF | EEE B2 A | BEE B2 A | Bcd ABd | FDD BAF :: d3 B2 A | 
 BEE B2 A | d3 B2 A | FDD BAF | d3 B2 A | BEE B2 A | Bcd ABd | FDD BAF :: E3 F3 | E3 BAF | E3 EFG | 
 FDD BAF | E3 F3 | E3 B2 A | Bcd ABd | FDD BAF :: dcd B2 A | BEE B2 A | dcd B2 A | FDD BAF | 
 dcd B2 A | BEE B2 A | Bcd ABd | FDD BAF :|  