Craft a piece of music that integrates both the suggested theme and letter-based structure.
X:1
L:1/4
Q:1/4=120
M:3/2
K:Gdor
['G3/2 A/ B c', 'd c', 'G ^F D']  
X:1
L:1/4
Q:1/4=120
M:3/2
K:Gdor
 G3/2 A/ B c A2 | G B A G ^F D | G3/2 A/ B c d2 | d2 D G G ^F | G6 :: B3/2 c/ d c B2 | 
 A3/2 B/ c B A2 | B3/2 A/ G d c B | A6 :: A3/2 B/ A G ^F D | A B/c/ d G ^F D | =B A/B/ c B A A | 
 G6 :|  