Develop a musical piece that combines the given theme and letter-structured outline.
X:1
L:1/4
M:4/4
K:G
['G A']  
X:1
L:1/4
M:4/4
K:G
 E G E D | G G (E/D/) B, | D3/2 E/ D B, | G A B2 | B d (B/A/) G | A (B/A/) (G/E/) D | 
 E3/2 F/ G B, | B, D E2 |]  