Compose music that abides by the dictated structure and encompass the given theme
X:1
L:1/8
Q:1/4=100
M:6/8
K:Bb
['B A2 G']  
X:1
L:1/8
Q:1/4=100
M:6/8
K:Bb
 B2 B A2 G | G3 F3 | (FG) A (Bd) c | (B3 A3) | B2 B A2 G | c3 F3 | (AG) B A2 G | (F3 F3) | 
 F2 F (FG) A | B3 d3 | G2 G (GA) =B | (c3 e3) | e2 d g2 f | e3 d3 | d2 c B2 A | (B3 B3) |]  