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:4/4
K:D
['dcde fdAF G2 BG FADF', 'C A,B,CD EFGE FDEF GABc dcdB ABde']  
X:1
L:1/8
M:4/4
K:D
 D2 FE DFAc | dcde fdAF | G2 BG FADF | GFED CEA,C | D3 F ADFA | dcde fdAF | G2 BG FADF | 
 EDEF D3 C :| A,B,CD EFGE | FDEF GABc | dcdB ABde | fdgf eABc | d2 fd ceAc | dcdB AFDF | 
 GdBG FEDF | EDEF D3 A :|  