Develop a musical composition by integrating the alphabetically represented musical pattern and the supplied melodic theme.
X:1
L:1/8
M:2/2
K:A
['(A/B/c) BA', 'ecac BAFB ecac faea']  
X:1
L:1/8
M:2/2
K:A
 B | (A/B/c) BA (BA).F.B | (A/B/c) BA ceae | (A/B/c) BA (BA).F.B | AFEF A2 A :: f | ecac BAFB | 
 ecac faea | ecac (BA)FB |{B} AFEF A2- Ae/f/ | ecac BAFB | ecac faea | dfca cAFB |{B} AFEF A2 A :|  