Assemble a piece of music by merging the alphabetic representation of the predetermined musical pattern and the provided melodic theme.
X:1
L:1/8
M:6/8
K:Bmin
['z DC B, z B,3 D F', 'ecd efe dBc ded', 'AFD AFD']  
X:1
L:1/8
M:6/8
K:Bmin
|: z DC | B, z B,3 D | F z F2 z F | ECD EFE | DCB, z DC | B, z B,3 D | F z F2 =F^F | AGF EDC | 
 B,3 :: fgf | ecd efe | dBc ded | c^AB cde | fdB f2 f | ecd efe | dBc ded | cgf edc | B2 z :: 
 z FG | =AFD AFD | AFD ABA | GFE GFE | AFD z FG | AFD AFD | AFD A^GA | cBA =GFE | D3 :|  