Construct a musical work following the provided guidelines and thematic elements.
X:1
L:1/8
Q:1/2=80
M:2/4
K:G
['G d2 c', 'BG- GA/B/', 'g/f/g/a/ gd'  
X:1
L:1/8
Q:1/2=80
M:2/4
K:G
 G d2 c | BcAB | G d2 c | B2 A2 | G d2 c | BcAB | GAEF | G2 D2 :: BG- GA/B/ | cA- AB/c/ | 
 BG- GA/B/ | c2 A2 | BG- GA/B/ | cA de/f/ | gB AB/A/ | G2 D2 :: g/f/g/a/ gB | dBcA | g/f/g/a/ gd | 
 B2 A2 | g/f/g/a/ gd | de/d/ cd/c/ | Bc/B/ AB/A/ | G2 D2 |]  