Construct a musical piece by amalgamating the designated alphabetical representation and the supplied musical theme.
X:1
L:1/8
Q:1/4=120
M:6/8
K:Bmin
['B2 c d2 e', 'ecA (a2 f) (g2 e) (f2 d)', 'd2 e f2', 'Bdf dfb', 'bBB dBB']  
X:1
L:1/8
Q:1/4=120
M:6/8
K:Bmin
"^Brisk" B2 c d2 e | fed Tc3 | B2 c d2 e | f2 g fdB | B2 c d2 e | fed Tc3 | A2 B c2 d | e2 a ecA :: 
 (a2 f) (g2 e) | (f2 d) Tc3 | B2 c d2 e | f2 g (fd)B | aaf gge | ffd Tc3 | A2 B c2 d | 
 e2 a (ec)A :: (Bc)B d2 e | f2 B d2 b | (fd)d d2 e | f2 g (fd)B | (a2 f) (d2 B) | af/(^g/a) d2 B | 
 c2 A ecA | afa =geg | fdf ece | (d/e/f)d (e/f/g)e | (f/^g/a)f ecA :: Bdf dfb | ged c2 f | 
 b2 B d2 e | fge fdB | Bdf dfb | fd'c' baf | e2 A Tc2 d | e2 a ecA :: bBB dBB | bBB d2 B | 
 bBB dBB | cAa ecA | bBB dBB | bBB b2 a | fba fed | Tc2 A ecA :|  