Craft a music piece according to the prescribed structure and the input theme.
X:1
L:1/8
Q:1/2=65
M:2/4
K:F
['G2 g2 fdcd', 'G>AB>c d(c/B/) cd'  
X:1
L:1/8
Q:1/2=65
M:2/4
K:F
"_no key sig. in ms" G2 g2 | fdcd | BFFD | F2 F2 | G2 g2 | fdcd | BAGF | G2 G2 :: G>AB>c | 
 d(c/B/) cd | BFFD | F2 F2 | G>AB>c | d(c/B/) cd | BGGF | G2 G2 | G>AB>c | d(c/B/) cd | gFFD | 
 F2 F2 | d(e/f/) gd | gdcd | BGGF | G2 G2 :|  