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:Bmin
['Bc d2', 'BAB F2 B B2 c dcd Bed']  
X:1
L:1/8
M:6/8
K:Bmin
 Bc |:"Bm" d2 B BAB | F2 B B2 c | dcd Bed |"A" c2 A ABc |"D" dcd"A" ede |"Bm" fbb afe | 
 dcB"A" AFE |1"Bm" FBB BBc :|2"Bm" FBB B3 |:"D" a3 f3 |"A" ecA A2 A | EAA cAA |"F#m" ece f2 e | 
"Bm" dBB BAB | FBB Bcd |"Em" efg"F#m" fge |1"Bm" dBB B3 :|2"Bm" dBB B |]  