Construct a musical work that combines the specified alphabet-based pattern with the given melodic theme.
X:1
L:1/8
M:6/8
K:G
['', 'GAG GBc', 'dBG A^GA B=GD']  
X:1
L:1/8
M:6/8
K:G
 D |: GAG GBc | d3 dBG | A^GA B=GD | EFG AFD | GAG GBc | d3 dBG | A^GA B=GD | E z F G2 D | 
 GAG GBc | ded dBG | A^GA B=GD | EFG AFD | GAG GBc | d3 dBG | A^GA B=GD | E z F G2 D | GAG GBc | 
 d3 dBG | A^GA B=GD | EFG AFD | GAG GBc | d3 dBG | A^GA B=GD | E z F G2 B | def gfe |{a} fed edB | 
 def gfe |{a} fed e2 B | def gfe | fed efg || GAG GBc | d3 dBG | A^GA B=GD | EFG AFD | GAG GBc | 
 d3 dBG | A^GA B=GD |1 E z F G2 D :|2 E z F G3 ||  