Compose a piece of music following the specified structure and theme.
X:1
L:1/8
M:2/2
K:Bb
['TB2 (FB)', 'bfdf egce', 'dBB a bfdf egce dfBd cFFf (gf)ga'  
X:1
L:1/8
M:2/2
K:Bb
 ud | TB2 (FB) GBFB | EBDB Cccd | TB2 (FB) Ggfe | dfce dBB :| uf | bfdf egce | dfBd cFFf | 
 bfdf egce | dfce dBB || a | bfdf egce | dfBd cFFf | (gf)ga (bg)fe | dfce dB"_Fine."B"^D.C." |]  