Craft a piece of music that integrates both the suggested theme and letter-based structure.
X:1
L:1/4
Q:3/4=80
M:3/4
K:C
['D G2 G G3/2 A/ B A2', 'G2 G']  
X:1
L:1/4
Q:3/4=80
M:3/4
K:C
 D | G2 G | G3/2 A/ B | A2 G | E3 | B2 B | c3/2 d/ e | d2 B | G2 :: G | B2 c | d3/2 e/ d | c2 B | 
 A2 G | F2 E | F2 G | A3/2 G/ F | E3 | D2 D | G2 G | F3/2 E/ F | E2 E | D2 G | F3/2 G/ A | G3 | 
 G2 :|  