Create music based on the specified alphabetic description of the musical arrangement and the given pattern.
X:1
L:1/8
M:2/4
K:Bb
['B2 e2 e2', 'c2 f/g/f/e/ dc']  
X:1
L:1/8
M:2/4
K:Bb
|:"Bb" FB dd |"F7" c/d/e- e2 | FA cc |"Bb" d2 B2 :|"Eb" e2 e2 |"F7" dc- c2 |"Bb" d2 d2 | cB- B2 | 
"Eb" e2 e2 |"F7" dc- c2 | f/g/f/e/ dc |"Bb" B4 |]  