Design a musical work that abides by the outlined structure and integrates the assigned theme.
X:1
L:1/8
M:3/8
K:Bb
['F B/d/ff f/e/ e2 dd>d d/c<ce/ d/c/BA']  
X:1
L:1/8
M:3/8
K:Bb
 F | B/d/ff | f/e/ e2 | dd>d | d/c<ce/ | d/c/BA | B2 F | B/d/fd | d/c<cF/ | B/d/fd | dcF | B/d/ff | 
 f/e<ee/ | d/c/BA | B2 |]  