Construct a musical work that combines the specified alphabet-based pattern with the given melodic theme.
X:1
L:1/8
M:3/4
K:G
['dc B2']  
X:1
L:1/8
M:3/4
K:G
|: dc |"G" B2 GBAG |"D" F2 DEDC |"G" B,2 D2"D" GF |"G" G4 dc |"G" B2 g2 f2 |"C" e2 A2 d2 | 
"A" ^c3 d ec |"D" d4 :: d2 |"C" ed efge |"G" d2 B2 cd |"Am" e2 EFGA |"D" G2 FEDC |"G" B,2 D2 GF | 
"C" EG c2 B2 |"D" AB D2 GF |"G" G4 :|  