Craft a piece of music that integrates both the suggested theme and letter-based structure.
X:1
L:1/8
Q:3/8=110
M:6/8
K:G
['c2 e .e.f.g d>BG', 'g/a/ b>af a>gf']  
X:1
L:1/8
Q:3/8=110
M:6/8
K:G
 B/c/ | d>BG d>BG | c2 e .e.f.g | d>BG d>BG | FAA A2 (B/c/) | B>AG B>AG | c2 e .e.f.g | d>BG c>AF | 
 A3 G2 :: g/a/ | b>af a>gf |{a} g>fe .d.c.B | .c.d.e .d.B.G | B3"^qu" A2 g/a/ | b>af a>gf | 
{a} g>fe .d.c.B | c2 e .d.B.G | A3 G2 :|  