Create music based on the specified alphabetic description of the musical arrangement and the given pattern.
X:1
L:1/8
M:4/4
K:A
['e2 cA', 'a2 ec', 'e2 cA', 'a2 ec']  
X:1
L:1/8
M:4/4
K:A
 f | e2 cA d2 df | e2 cA dBBa | e2 cA d2 fd | edcB cAA :| g | a2 ec d2 fd | a2 ec fBBg | 
 a2 ec d2 fd | edcB cAAg | a2 ec d2 fd | a2 ec fBBg | afec defa | edcB cAA ||[K:A][K:A] f | 
 e2 cA d2 fd | e2 cA dBBa | e2 cA d3 =g | f>ded cA A :| g | f/g/a ec e2 eg | a2 ec fBBg | 
 a2 ec e2- e>=g | fded cAA ^g | f/g/a ec e2 eg | a2 ec fBBg | a2 ec e2- e>=g | fded cA A |]  