Compose a piece using the specified musical pattern based on the alphabet and the provided melodic theme.
X:1
L:1/8
M:4/4
K:D
['', 'DB, (3B,B,B,', 'FDEF DB,DE F2 EF :|2 dcBd AdFD']  
X:1
L:1/8
M:4/4
K:D
 EF |: DB, (3B,B,B, DA,A,F | DB, (3B,B,B, F2 EF | DB, (3B,B,B, DA,A,D |1 B,CDE F2 EF :|2 
 B,CDE F2 EB || ADBD FEEB | ADBA (3FFF Fd |1 ADBD FDEF | DB,DE F2 EF :|2 dcBd AdFD | B,CDE FD ||  