Generate a composition that blends the designated melodic theme with the particular alphabetical naming of the musical pattern.
X:1
L:1/8
M:4/4
K:D
['', 'GECE D2', 'a2 fe']  
X:1
L:1/8
M:4/4
K:D
 (3A,B,C |: D2 FA dAFA | (3Bcd ef gece | (3dedcd BdAF | GBAF GECE | D2 FA dAFA | (3Bcd ef gece | 
 (3ded cd BdAF |1 GECE D2 (3A,B,C :|2 GECE D2 fg |: a2 fe d3 g | b2 gf e2 fg | a2 fe dcdf | 
 efga fddf | a2 fe d3 g | b2 gf edef | (3ded cd BdAF |1 GECE D2 fg :|2 GECE D4 ||  