Compose melodious music utilizing the prescribed letter representation and integrating the given thematic element.
X:1
L:1/8
M:4/4
K:Gmin
['', 'DFBc dBgf (3ecA (3ecA a2 ag f=e_ec', '(3fgf eg']  
X:1
L:1/8
M:4/4
K:Gmin
 FE |: DFBc dBgf | (3ecA (3ecA a2 ag | f=e_ec Aagf | =efgf dBFE | DFBc dBgf | (3ecA (3ecA a2 ag | 
 f=e_ec AagA |1 B2 d2 B2 FE :|2 B2 d2 B2 cB |:[K:F] Acdc afef | dBdf bg^fg | ec=Bc ^cd_e=e | 
 (3fag (3fed c2 cB | Acdc afef | dBdf bg^fg | ec=Bc ^cd_e=e |1 (3fgf eg f2 cB :|2 (3fgf eg f2 ||  