Craft a musical piece that integrates the provided melodic theme and the corresponding alphabetical pattern.
X:1
L:1/8
M:4/4
K:Bmin
['F^E FBBc defa efed c2 dc BGGF', 'faaf efed c2 A=c BGGF G2 Bd']  
X:1
L:1/8
M:4/4
K:Bmin
|: F^E | FBBc defa | efed c2 dc | BGGF G2 B/c/d |1 cAA^G A2 :|2 cBB^A B2 |: de | f3 e faaf | 
 efed c2 A=c | BGGF G2 Bd |1 cAA^G A2 :|2 cBB^A B2 |: ag | fBB^A B2 eg | gffe edde | eAA^G Aceg |1 
 gffb ba :|2 gffd B2 ||  