Develop a musical composition based on the outlined framework and thematic material.
X:1
L:1/8
M:2/4
K:G
['B G2', 'd B'  
X:1
L:1/8
M:2/4
K:G
 d | B G2 A | B3 c | dgdB | ceAc | B G2 d | Bgbg | fd"^tr" e2 | d3 :: d | dBdB | ceAc | BdGB | 
 AFED | dBdB | ec"^tr" c2 | fdef | g3 d | B G2 A | B3 c | dgdB | ceAc | B G2 d | B g2 e | dBcA | 
 G3 :|  