Craft a piece of music that integrates both the suggested theme and letter-based structure.
X:1
L:1/8
M:3/4
K:Gmin
['g^f/g/ d2 B>d e>d c/d/e/f/ d2 b>a', 'B>c d/c/d/e/ cc A>B c/B/c/d/ BB G>A']  
X:1
L:1/8
M:3/4
K:Gmin
 g^f/g/ d2 B>d | e>d c/d/e/f/ d2 | b>a ga ba/g/ | g/^f/a/^f/ d2 d/ ^f/a/^f/ | g^f/g/ d2 B>d | 
 e>d c/d/e/f/ d2 | b>a ga ba/g/ | ^fe/^f/ g4 :: A | B>c d/c/d/e/ cc | A>B c/B/c/d/ BB | G>A BcdB | 
 A>G ^F/G/A/^F/ D2 | B>c d/c/d/e/ cc | A>B c/B/c/d/ BB | G>A Bcdg | ^fe/^f/ g4 :|  