Compose a piece of music that combines the given melodic theme with the assigned alphabetical pattern.
X:1
L:1/8
M:4/4
K:D
['A3 F ABde fdec d2 cd', 'fdad bdaf dfaf gfed']  
X:1
L:1/8
M:4/4
K:D
 B | A3 F ABde | fdec d2 cd | BE E2 G3 B | AF F2 dFAF | A3 F ABde | fdec d2 cd | BAGB ABde | 
 faeg fdd :| e | fdad bdaf | dfaf gfed | fbba b3 a | fbba feeg | fdad bdaf | dfaf gfed | 
 BAGB ABde | faeg fdd :|  