Compose a tune that integrates the letter-based representation of the determined musical pattern and the given melodic idea.
X:1
L:1/8
Q:3/8=80
M:6/8
K:Bb
['BAB FBd c2 c c2 e dfB', 'D2 f']  
X:1
L:1/8
Q:3/8=80
M:6/8
K:Bb
|: BAB FBd | c2 c c2 e | dfB gfe | dcB AGF | BAB FBd | c2 c c2 e | dfB ecA | B3 [BB,]3 :: 
 fdB D2 f | g2 E E2 g | ecA [cC]2 e | f2 D D2 f | b2 B g2 G | e2 E c2 C | DFA cBA | B2 B, B,3 :|  