Craft a music piece according to the prescribed structure and the input theme.
X:1
L:1/8
Q:1/4=120
M:4/4
K:Bb
['B,<B vB>ud vc>vBuc>ud B<cG<B F>D{=B,} C2 B,<B', '(G<B) F>D'  
X:1
L:1/8
Q:1/4=120
M:4/4
K:Bb
|:"^Strathspey." B,<B vB>ud vc>vBuc>ud | B<cG<B F>D{=B,} C2 | B,<B B>d c>Bc>d | 
 vB>vF (G<B) F>D B,2 :: vd<ff>ug vf>vduc>uB | vd<ff>ug vf>vd c2 |1 d<ff>g f>dc>d | 
 vB>vF (G<B) F>D B,2 :|2 d<fc<d B>cd>c | B>F (G<B) F>D B,2 |]  