Create a musical composition based on the alphabetic representation of the predetermined pattern and the given melodic theme.
X:1
L:1/8
M:6/8
K:Amix
['', 'AAA e2 c efa f2 e', 'a3 AAA cea fee', 'fee faa AAA fec cBB AAA cBc', 'fee eff fec BAA']  
X:1
L:1/8
M:6/8
K:Amix
 e || AAA e2 c | efa f2 e | faa AAA | fec cBB | AAA e2 c | efa f2 e | eff fec | BAA A3 :| a3 AAA | 
 cea fee | faa AAA | fec cBB |1 a3 AAA | cea fee | eff fec | BAA A2 e :|2 AAA e2 c | efa f2 e | 
 eff fec | BAA A3 || AAA cBc | AeA fee | faa AAA | fec cBB | AAA cBc | AeA fee | eff fec | 
 BAA A2 e :| c2 e afa | Ace fee | faa AAA | fec cBB |1 c2 e afa | Ace fee | eff fec | BAA A3 :|2 
 AAA cBc | AeA fee | eff fec | BAA A3 |]  