Construct a musical work following the provided guidelines and thematic elements.
X:1
L:1/8
M:4/4
K:G
['DG G2 DGBG EA A2 EAcA', 'G3 B d2 Be dGBd gfgd efge', 'dg g2'  
X:1
L:1/8
M:4/4
K:G
|: E | DG G2 DGBG | EA A2 EAcA | BGBd g2 fg | egdB AGEG | DG G2 DGBG | EA A2 EAcA | Bdgd edBG | 
 FGAF G3 :: B | d2 Be dGBd | gfgd efge | dB B2 GBdB | A2 GB ABcA | BddB dega | bg g2 agef | 
 gfgd edBG | FGAF G3 :: B | dg g2 egdB | GBdB BAAB | dg g2 edBd | (3efg fa g3 a | bg g2 egdB | 
 c2 AG FGAc | dg g2 edBG | FGAF G3 :|  