Develop a musical composition based on the outlined framework and thematic material.
X:1
L:1/4
Q:1/4=100
M:3/4
K:Bb
['F2 B']  
X:1
L:1/4
Q:1/4=100
M:3/4
K:Bb
"Bb" F2 B | d2 B |"F7" (A G) F |"Bb" B2 F | F2"Eb" G |"Bb" D2"F" C |"Bb" D2"C7" =E |"F" F2 z | 
"Bb" F2 B | d2 B |"F7" (c B/)A/ G/F/ |"Bb" B2 F | F2"Eb" G |"Bb" F2 B |"Bb/D" D2"F7" C | 
"Bb" B,2 z |]  