Craft a musical composition with the supplied motif and conforming to the necessary format.
X:1
L:1/8
M:3/4
K:Bb
['gf d2 B,F DF A,F', "eg gd' c'2 df fc' b2 ba"  
X:1
L:1/8
M:3/4
K:Bb
 gf |:"Bb" d2 B,F DF |"F7" A,F A2 gf | e2 A,F CF |"Bb" B,F B2 gf | d2 B,F DF |"F7" A,F A2 gf | 
 e2 A,F CF |"Bb" B,2 z2 gf ::"Cm" eg gd' c'2 |"Bb" df fc' b2 |"F7" ba gf eA |"Bb" B2 dg f2 | 
"Eb" eg gd' c'2 |"Bb" df fc' b2 |"F7" ba gf ec |1"Bb" B2 z2 gf :|2"Bb" B2 z2 z2 |]  