Compose a musical piece in accordance with the outlined theme and structure.
X:1
L:1/8
M:2/2
K:Bb
['(uFE) DFB,B AcFe dfBb agec dABF Ggec', 'B,2 (dc) AFec AFdB geBg fdBf edc=B'  
X:1
L:1/8
M:2/2
K:Bb
 (uFE) | DFB,B AcFe | dfBb agec | dABF Ggec | AgG=e (3f_ec (3AFE | (3DFB, (3EGB (3AcF (3Bdf | 
 GBcd efg=E | (3Ff=e (3fdB (3F_ed (3ecA | (3BdD (3EGA, B,2 :: (dc) | AFec AFdB | geBg fdBf | 
 edc=B cAc_B | Af=eg f2 (3(fga) | (3bfe (3dcB (3gec (3fdB | (3ecA (3FAc (3dBb (3fdB | 
 (3Ggf (3edc (3BAG (3FGA | (3Bdf (3bfd B2 :|  