Craft a musical piece that integrates the provided melodic theme and the corresponding alphabetical pattern.
X:1
L:1/8
Q:1/4=80
M:4/4
K:Bmin
['F<F B<B d>F E2 F<F d>e Tc>B', 'B2 a>f Tf>e d>e F2 d<d e<e']  
X:1
L:1/8
Q:1/4=80
M:4/4
K:Bmin
 F<F B<B d>F E2 | F<F d>e Tc>B c<e | f>f e>f A>B{B} d2 | e<c f>e Tc>B B2 || a>f Tf>e d>e F2 | 
 d<d e<e a<f f>e | f>B d>A TF>E E2 | F<F d>e c>B ce | f>f e>f B2 A>B | d>c f>e{d} c>B B2 |]  