Create a musical composition based on the alphabetic representation of the predetermined pattern and the given melodic theme.
X:1
L:1/8
M:2/2
K:D
['EFDE F/F/F AF G/G/G BG', 'ABde fe e/e/e']  
X:1
L:1/8
M:2/2
K:D
|: dcdA BAFB | AF F/F/F EFDE | F/F/F AF G/G/G BG | ABde fdec | d/d/d dA BAFB | AF F/F/F/ EFDE | 
 F/F/F AF G/G/G BG |1 ABde fe e/e/e :|2 ABde fdde |: fa a/a/a afdf | g/g/g fg edBd | 
 fa a/a/a bafd | ABde fe e/e/e | fa a/a/a afdf | g/g/g fg |{f} edBA | F/F/F AF G/G/G BG |1 
 ABde fe e/e/e :|2 ABde fdec |]  