Compose a piece using the alphabetic notation of the assigned musical structure and the provided melodic motif.
X:1
L:1/8
Q:3/8=135
M:6/8
K:Bb
['B2 F']  
X:1
L:1/8
Q:3/8=135
M:6/8
K:Bb
 FGF B2 F | B2 c d2 c | A2 F B2 F | c2 F d2 F | def gfe | dcB A2 F | Ggf =ecf | f2 =e f3 ::  