Compose a piece using the specified musical pattern based on the alphabet and the provided melodic theme.
X:1
L:1/8
M:2/2
K:A
['cBAc ecfd', 'E2 Ec dBcA dfce']  
X:1
L:1/8
M:2/2
K:A
 e | cBAc ecfd | cBAc BEEd | cBAc ecfd | ceBe A2 A2 || E2 Ec dBcA | dfce BAGE | E2 Ec dBcA | 
 dfce Be A2 | E2 Ec dBcA | dfce BAGF | AcBd cedf ea g/f/g a2 a2 :|  