Develop a musical composition utilizing the presented motif and adhering to the required structure.
X:1
L:1/16
M:2/4
K:G
['(DG).G.B (AG).E.G (DG).G.B e4 d2(gf) edcB', 'G2 G2 g2gg (gb).a.g (fd).d.d (d2>B2) cBcd'  
X:1
L:1/16
M:2/4
K:G
 D2 | (DG).G.B (AG).E.G | (DG).G.B e4 | d2(gf) edcB | cBce dBAG | (DG).G.B (AG).E.G | (DG).G.B e4 | 
 d2(gf) edcB | dcAB G2 :: G2 | g2gg (gb).a.g | (fd).d.d (d2>B2) | cBcd e2(ce) | (ag).f.e d4 | 
 .G(gfg) .e(gfg) | .d(gfg) .b(gfg) | dgfe dcBA | G2G2G2 :|  