Create music based on the specified alphabetic description of the musical arrangement and the given pattern.
X:1
L:1/8
M:2/2
K:Bb
['B>AB>c B>cd>e f>=ef>g', 'A>f=e>f d>fB>f']  
X:1
L:1/8
M:2/2
K:Bb
 uF2 | B>AB>c B>cd>e | f>=ef>g f>dB>d | f>=ef>g f>dc>B | A>cB>G F>ed>c | B>AB>c B>cd>e | 
 f>=ef>g f>ag>f | =e>fg>a b>ge>g | f>ca>g f2 :: (ucB) | A>f=e>f d>fB>f | A>f=e>f d>fB>f | 
 g>fe>d e>dc>B | A>cB>G F2 (dc) | B>fd>B A>ec>A | B>fd>B A>ec>A | B>ba>g (3.f.g.f (3.e.d.c | 
 B2 b2 B2 :|  