Write a musical work incorporating the specified theme and letter-based framework.
X:1
L:1/8
Q:1/8=360
M:4/4
K:G
['GBdg gfac cBdG BAGF GBdg gfed', 'd f/g/ afdf gdBG ecAG GFED GBdg']  
X:1
L:1/8
Q:1/8=360
M:4/4
K:G
 z | GBdg gfac | cBdG BAGF | GBdg gfed | gedc d>e d/c/B/A/ | GBdg gfac | cBdG BAGF | GBdg gfed | 
 ged^c d2 d || f/g/ | afdf gdBG | ecAG GFED | GBdg gf/g/ac | BAGF G2 G :|  