Compose a musical piece using the designated musical pattern's alphabetic representation and the assigned melodic theme.
X:1
L:1/8
M:4/4
K:G
['D2 G2 GFGE D2 B2 BGAB cBcB', '[dF]4 edef']  
X:1
L:1/8
M:4/4
K:G
 D2 G2 GFGE | D2 B2 BGAB | cBcB ABcd | e2 d2 d4 | D2 G2 GFGE | D2 B2 BGAB | cBcB DEFG | A2 G2 G4 :| 
 [gB]4 [fd]4 | [ec]4 [dF]4 | edef gfeA | B2 A2 A4 | [gB]2 [gB]2 [fd]2 [fd]2 | [ec]2 [ec]2 [dF]4 | 
 edef gfeG | A2 G2 G4 :|  