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
Q:1/4=120
M:4/4
K:Bbdor
['.F2 .F2']  
X:1
L:1/8
Q:1/4=120
M:4/4
K:Bbdor
 B,2 |"Bbm" .F2 .F2 FE ED | .F2 .F2 FE ED |"Ab" E2 E2 E2 DC |"Bbm" B,4 D2 B,2 | 
"Eb" E2 E2"Ab" E2 DC |"Bbm" B,6 B,2 |"Bbm" .F2 .F2 .F2 ED | .F2 .F2 .F2 ED |"Eb" E2 E2"Ab" E2 DC | 
"Bbm" B,4 D2 B,2 |"Eb" E2 E2"Ab" E2 DC |"Bbm" B,6 B,2 |:"Bbm" D B,3 D B,3 |"Eb" EEEE"Bbm" B,4 | 
 D B,3 D B,3 |"Eb" EEEE"Bbm" B,4 :|  