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:C
['GGAB cdBA G2 AB c2']  
X:1
L:1/8
M:2/4
K:C
 GGAB | cdBA | G2 AB | c2 e2 | GGAB | cdBA | G2 AB | c2 z2 |]  