Assemble a piece of music by merging the alphabetic representation of the predetermined musical pattern and the provided melodic theme.
X:1
L:1/8
M:6/8
K:Amix
['a3 ece edB', 'fed faf g2 d BAB def g3', 'aed c3 dcd ede gab age dBe']  
X:1
L:1/8
M:6/8
K:Amix
 a3 ece | edB BAB | Aaa Ace | dcB Ace | a3 ece | edB BAF | GBd ged |1 edB Ace :|2 edB A2 f |: 
 g3 a3 | bag fed | faf g2 d | BAB def | g3 a3 | bge gab | age dBe |1 ABA A2 f :|2 A BA A2 B |: 
 c3 edd | edB dBA | A3 dBA | A3 aed | c3 dcd | ede gab | age dBe |1 ABA A2 B :|2 A BA Ace ||  