Construct a musical work following the provided guidelines and thematic elements.
X:1
L:1/8
M:4/4
K:G
['G3 B', 'ABAG E3'  
X:1
L:1/8
M:4/4
K:G
 D3 E G3 B | ABAG E3 F | G2 D2 GABA | G3 D G3 B | D3 E G3 B | ABAG E2 e2 | dedB dBAG | G4 B4 || 
 d3 D D2 B2 | ABAG E3 B | D2 d2 d3 e | dedc B3 B | cdec BcdB | ABAG E3 e | dedc dBAG | G4 B4 ||  