Develop a musical composition based on the outlined framework and thematic material.
X:1
L:1/8
M:3/4
K:Bb
['A2 FFFF']  
X:1
L:1/8
M:3/4
K:Bb
 FF | B2 FFFB | A2 FFFF | c2 FFFA | B2 FFFF | B>FFFFB | A2 FFFF | e2 FFGA | B2 z2 |]  