Produce music using the specified musical structure depicted in letters along with the provided musical theme.
X:1
L:1/8
M:4/4
K:Bb
['B2 F2 D2 F2 d3 BdccA B4']  
X:1
L:1/8
M:4/4
K:Bb
 F2 | B2 B2 B2 d2 | B2 F2 D2 F2 | d3 BdccA | B4 z2 Bc | d2 d2 edcB | c3 d c2 FA | c2 c2 dcBA | 
 B2 F2 D2 F2 | d3 BdccA | B4 z2 |]  