Craft a music piece according to the prescribed structure and the input theme.
X:1
L:1/8
Q:3/8=100
M:6/8
K:F
['B3 F2 f edc d3', 'f3 c3 F2 f edc d3 (c/d/e)c'  
X:1
L:1/8
Q:3/8=100
M:6/8
K:F
|: B3 F2 f | edc d3 | g e2 f d2 | ecB AGF | B3 F2 f | edc d3 | b g2 a2 f | abg f3 :: c3 F2 f | 
 edc d3 | (c/d/e)c (g/a/b)B | (A/B/c)A F2 E | DFB FBd | (g/a/b)g f2 e | dcB FBA | B3 B,3 :|  