Craft a musical work based on the specified structure and given theme.
X:1
L:1/8
M:2/4
K:G
['g2 d>c B3 B cA', 'd2 g2 d>c B3 B cA', 'd>e d>e dB Bc'  
X:1
L:1/8
M:2/4
K:G
 g2 d>c | B3 B | cA AG | ed d2 | g2 d>c | B3 B | cA AF | G3 :| A>B cA | Bc dB | AB cA | Bc d2 | 
 g2 d>c | B3 B | cA AG | ed d2 | g2 d>c | B3 B | cA AF | G2 G2 || d>e d>e | dB Bc | BA AB | AG GB | 
 d>e d>e | dB Bc | Ac BA | G3 z ||  