Create music using the given musical theme and adhere to the outlined letter-based structure.
X:1
L:1/8
M:2/4
K:G
['GF ED DE/F/ GB EF', 'GA/B/ AE EF']  
X:1
L:1/8
M:2/4
K:G
|: G>G GF | ED DE/F/ | GB EF | GD DE/F/ | GD GF | ED DE/F/ | GB EF |1 GD DE/F/ :|2 GA Bc/d/ |: 
 cA AG/A/ | BG GA/B/ | AE EF | GA Bc/d/ | cA AG/A/ | BG GA/B/ | AE EF |1 GA Bc/d/ :|2 GD DE/F/ ||  