Create a composition using the letter notation of the specified musical motif and the provided melodic theme.
X:1
L:1/4
M:4/4
K:Bb
['B B']  
X:1
L:1/4
M:4/4
K:Bb
 F | B B B F | D E F z/ F/ | D E F B | A B c c | B B B F | D E F3/2 F/ | D E F B | 
 c3/2 A/ B3/2 B/4c/4 | d c d f | c3/2 c/ c A | B A B c | A G F F | B B B F | D E F B | 
 d c/B/ c A/A/ | B2 z |]  