Craft a piece of music that integrates both the suggested theme and letter-based structure.
X:1
L:1/4
M:3/4
K:G
['g G B A B2 d e/f/', 'd e7/8f/8 g d']  
X:1
L:1/4
M:3/4
K:G
|: g | G B A | B2 d | e/f/ g B | A/G/ !fermata!A g/4e/4f/ | d G- G/A/ | B d A/c/ | B G G | G2 :| 
 g | e d- d/g/ | e d g | e d g | e2 d | e7/8f/8 g d | e7/8f/8 g d | e/f/ g g | g2 B | 
 c3/2 c/ B/A/ | B d- d/d/ | e/f/ g B | A/G/ !fermata!A g/4f/4e/ | d G G/>A/ | B d A/c/ | B G G | 
 G2 ||  