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
Q:3/8=100
M:6/8
K:Bb
['F B,(DF) (B,D)F EDC B,2 B BG-G']  
X:1
L:1/8
Q:3/8=100
M:6/8
K:Bb
 F | B,(DF) (B,D)F | EDC B,2 B | BG-G (GA)B | c2 F F2 F | (FD)F B2 D | B,2 D C2 D | (ED)C G2 F | 
 (FE)C B,2 ||  