Compose a musical piece based on the given motif and alphabet representation.
X:1
L:1/8
M:4/4
K:C
['Ac e6 Be e d3- d2 GB']  
X:1
L:1/8
M:4/4
K:C
 Ac | e6 Be | e d3- d2 GB | d4- d/d/ dc d | e6 | ee | g4- ge fe | d A3- A2 Bc | d4- de fB | c6 ||  