Develop a musical piece using the given motif and adhere to the outlined structure.
X:1
L:1/16
Q:1/4=90
M:2/4
K:C
['Gc e2(Gc) e2(Gc) (fg) (ef) d2(GB) d2(GB)', "c4 (gf) e2(ed) c2(c'b) a^gag a=gfe (de)(cd)"  
X:1
L:1/16
Q:1/4=90
M:2/4
K:C
 Gc | e2(Gc) e2(Gc) | (fg) (ef) d2(GB) | d2(GB) d2(cd) | (ef)(de) c4 :: (gf) | e2(ed) c2(c'b) | 
 a^gag a=gfe | (de)(cd) (Bd)(gB) |{d} (cB)(cd) c4 :|  