Utilize the alphabetic system of the specified musical pattern and the supplied melodic theme to create a piece of music.
X:1
L:1/8
M:4/4
K:Bb
['FDF B2 z2 z BFB d2 z4']  
X:1
L:1/8
M:4/4
K:Bb
 Fdc | B3 BcBAG | FD F3 FGA | B3 BdBAB | c4 z FcB | A3 G^FAd>A | cB B3 GAB | c3 A/F/CBAG | 
 F2 z3 FDF | B2 z2 z BFB | d2 z4 d2 | d3 d c2 d2 | e4 z edc | B3 F d2 c2 | B4 z FDF | B2 z2 z BFB | 
 d2 z4 d2 | d3 d c2 d2 | e4 z edc | B3 F d2 c2 | B4 z |]  