Write a musical work incorporating the specified theme and letter-based framework.
X:1
L:1/16
M:2/4
K:Bb
['D2B2 F2dc B2B2 B2AB c2dc', 'c2cA f2fd c2cA', 'f4 f2d2 g2f2e2d2 c2c2']  
X:1
L:1/16
M:2/4
K:Bb
 FE | D2B2 F2dc | B2B2 B2AB | c2dc BAGF | F2dc B2FE | D2B2 F2dc | B2B2 B2AB | c2dc BAGA | B2d2B2 |] 
 !fermata!AB | c2cA f2fd | c2cA F2GF | =EFGA BGcB | B4 A2AB | c2cA f2fd | c2cA F4 | =EFGA BAGE | 
 F2A2"^D.C."F2 |] de | f4 f2d2 | g2f2e2d2 | c2c2 cBcd | BABc dcde | f4 f2d2 | g2f2e2d2 | 
 c2c2 cBcd | B2d2"^D.C."B2 |]  