Develop a musical composition utilizing the presented motif and adhering to the required structure.
X:1
L:1/8
M:4/4
K:C
['BEA |[M:2/2][K:G]SOSOO .!fermata!PMTuCO(Mge) dBAc BAGA BcBA B2', '(ef) gfge'  
X:1
L:1/8
M:4/4
K:C
 BEA |[M:2/2][K:G]SOSOO .!fermata!PMTuCO(Mge) | dBAc BAGA | BcBA B2 (ge) | dBAc BGGB | Aaa^g a2 :| 
 (ef) | gfge gbag | gfga beef | gfga bagf | eaa^g a2 (ef) | gfge gbaf | gfga beeg | 
 (3(bag) af gfed | eaa^g a2 |]  