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:6/8
K:Bb
['F B2 BB>AG F2 F F2 f']  
X:1
L:1/8
M:6/8
K:Bb
 F | B2 BB>AG | F2 F F2 f | d3 c3 | B3 z2 F | B2 BB>AG | F2 F F2 f | d3 c3 | B3 z3 | fddf | eccF | 
 B/c/d/e/fB | d2 c2 | B2 z |]  