Create a musical composition adhering to the provided thematic and alphabetical guidelines.
X:1
L:1/8
M:6/8
K:A
['cea ecA']  
X:1
L:1/8
M:6/8
K:A
|: B | cea ecA | cea ecA | dfb fdB | dfb fdB | cea ecA | cea ecA | dff cee | BcB A2 :|  