Develop a musical composition that aligns with the given structural outline and thematic content.
X:1
L:1/8
M:2/4
K:G
['D G>DGA BG A2 B2 A/G/A G2']  
X:1
L:1/8
M:2/4
K:G
 D | G>DGA | BG A2 | B2 A/G/A | G2 z B/c/ | dddB/c/ | dB G2 | B2 d/c/A | G2 z |]  