Create music using the given musical theme and adhere to the outlined letter-based structure.
X:1
L:1/8
M:2/2
K:G
['B2 GB EBGB', 'gfef gfed']  
X:1
L:1/8
M:2/2
K:G
 dc |]"Em" B2 GB EBGB |"D" A2 FA DAFA |"Em" B2 GB EBGB |"D" BcAF"Em" GE E2 |"Em" B2 GB EBGB | 
"D" A2 FA DAFA |"Em" B2 GB EBGB |"Bm" FBAF"Em" GE E2 |]"Em" gfef gfed |"D" BdAG FA D2 | 
"Em" gfef gfed |"G" Bdef"A" ge e2 |"Em" gfef gfed |"D" BdAG FGAF |"Em" E2 EF{A}"G" GFGA | 
"A" Bdef gfed |]  