Design a musical work that abides by the outlined structure and integrates the assigned theme.
X:1
L:1/8
Q:1/2=90
M:2/2
K:Bb
['BABF DFBc dBgf edcB c=Bcd ecFA', '(3fga bB (3BAB GB (3BAB FB (3BAB'  
X:1
L:1/8
Q:1/2=90
M:2/2
K:Bb
 dc | BABF DFBc | dBgf edcB | c=Bcd ecFA |"^triplet signs added" (3Bdc (3BAG Fedc | BABF DFBc | 
 dBgf edcB | c=Bcd ecFA | B2 d2 B2 :: (3fga | bB (3BAB GB (3BAB | FB (3BAB DB (3BAB | c=Bcd ecFA | 
 (3Bdc (3BAG F2 (3fga | bB (3BAB GB (3BAB | FB (3BAB DB (3BAB | c=Bcd ecFA | B2 d2 B2 :|  