Design a musical work that abides by the outlined structure and integrates the assigned theme.
X:1
L:1/8
M:2/4
K:Bb
['B,3 C (D4 D2) F2 B2 c2', 'G2 F4', 'c3 d'  
X:1
L:1/8
M:2/4
K:Bb
"^A" B,3 C | (D4 | D2) F2 | B2 c2 | d3 e | f4 | d2 f2 | c3 E | F2 f2 | d2 c2 | B3 c | d2 B2 | (F4 | 
 F3) z | B,3 C | (D4 | D2) F2 | B2 c2 | d3 e | f4 | d2 f2 | c3 E | F2 f2 | d2 F2 | (B4 | B2) z2 || 
[M:2/4]"^B" f3 e/d/ |"_( Eb>F" (c4 |"_Eb2  )" c4) | e3 d/c/ |"_(  D>Eb" (B4 |"_D2 )" B4) | F3 B | 
 D2 G2 | F4 | F3 c | C2 G2 | F4 | f3 e/d/ |"_( Eb>F" (c4 |"_Eb2  )" c4) | e3 d/c/ |"_(  D>Eb" (B4 | 
"_D2 )" B4) | F3 B | D2 G2 | F4 | F3 F/d/ d2 c2 | !fermata!B4 ||[M:2/4]"^C" F4 | f4 | B4 | c3 d | 
 (e4 | e2) F2 | f2 dc | B3 c | d4 | DB Fd | c3 d | e4 | Ec Fd | B3 c | d2 e2 | !fermata!f4 | F4 | 
 f4 | B4 | c3 d | (e4 | e2) F2 | f2 dc | B3 c | d4 | DB Fd | c3 d | e2 f2 | d2 F2 | (B4 | (B4) | 
 B2) z2 |]  