Write a musical work incorporating the specified theme and letter-based framework.
X:1
L:1/8
M:4/4
K:G
['G3 B A3 F GBAG FD D2', '(3BcB GB', 'g2 gf gdBd']  
X:1
L:1/8
M:4/4
K:G
 D | G3 B A3 F | GBAG FD D2 | DGGF GABc | d^cde fd=cA | G3 B A3 F | GBAG FD D2 | DGGF GABc | 
 (3dcB (3cBA BGGA || (3BcB GB DBGB | AGFG ABcA | (3BcB GB DBGB | cAFG AG G2 | (3BcB GB GBdB | 
 AGFG ABcA | B3 c d^cde | fdcA BGBd || g2 gf gdBd | cBAB cdef | g2 gf gdBd | cedc BGGd | 
 g2 gf gdBd | cBAB cdef | gb (3agf gedB | cedc BGAF ||  