Create music using the given musical theme and adhere to the outlined letter-based structure.
X:1
L:1/8
Q:1/2=70
M:4/4
K:G
['D2 G2 GB A2 Ac B2 ge', 'G2 D2 dedc B2 B2 cdcB{B} A4']  
X:1
L:1/8
Q:1/2=70
M:4/4
K:G
 D2 | G2 GB A2 Ac | B2 ge d2 c2 | B2 (3dcB A2 (3cBA | G2 GG G2 :: D2 | dedc B2 B2 | cdcB{B} A4 | 
 dedc BcBc | ef (3dcB{B} A3 D | G2 G>B A2 Ac | B2 ge{e} d3 c | B2 (3dcB A2 (3cAF | G2 GG G2 :|  