Craft a musical piece that incorporates the given motif and follows the outlined structure.
X:1
L:1/8
Q:1/4=90
M:6/8
K:Bb
['F2 F']  
X:1
L:1/8
Q:1/4=90
M:6/8
K:Bb
"Bb" F2 F F2 F | F3 B3 | D2 D (FE)D |"F" C3- C2 z |"Bb" F2 F F2 F | d3 B3 |"Cm" c2 c"F7" (FG)A | 
"Bb" B3- B2 z |]  