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
['E3/2 D/ E G2', 'E3/2 D/ E G2']  
X:1
L:1/4
M:3/4
K:G
 G E3/2 D/ | E G2 | D E3/2 D/ | E G2 | B d3/2 c/ | B A G |1 A B A | G A2 :|2 A B G | G G2 |: 
 B3/2 c/ d | e2 e | d2 c | B3/2 A/ G | A3/2 ^F/ D | A3/2 B/ c | d3/2 c/ B | A2 G | E3/2 D/ E | 
 G2 D | E3/2 D/ E | G2 B | d3/2 c/ B | A G A | B G G | G3 :|  