Compose music by following the designated structure and integrating the suggested musical idea.
X:1
L:1/8
M:2/4
K:G
['gdBG ceAc', '(g/f/e/f/) (g/f/e/f/)', 'GAB cde deB AGF B3 DEF GAB', 'gbg =ece fcB AGF d3 BdB GAB'  
X:1
L:1/8
M:2/4
K:G
|: B | GB (d/e/f) | gdBG | ceAc | BGAF | GB (de/f/) | gdBG | ceAc | B2 G :: B | 
 (g/f/e/f/) (g/f/e/f/) | gBgB | (g/f/e/f/) (g/f/e/f/) | aAaA | (g/f/e/f/) (g/f/e/f/) | gBdB | 
 (c/A/c) (B/G/F) | G2 G, ::[M:9/8][K:Bb] B3 DEF GAB | cde deB AGF | B3 DEF GAB | 
 cec AFA !fermata!B3 :: f3 dBd gbg | =ece fcB AGF | d3 BdB GAB | AGF =ECE"_Da Capo" F3 :|  