Construct a music composition that complies with the designated structure and theme.
X:1
L:1/16
M:2/4
K:F
['c2de f2ed c4 b2a2', 'f4 c=Bcd'  
X:1
L:1/16
M:2/4
K:F
"F" AGAF d2c2 | fefd b2a2 |"C7" g^fgc a2g2 |"F" fefd c4 | AGAF d2c2 | fefc b2a2 |"C7" g^fgc a2g2 | 
"F" f2f2 f2 z2 ::"F" FGAB"C7" c2de |"F" f2ed c4 |"C7" b2a2 !>!g4 |"F" a2g2 !>!f4 | FGAB"C7" c2de | 
"F" f2ed c4 |"C7" b2a2 gage |"F" f2a2 f2 z2 ::[K:Bb]"Bb" !>!f4 f2ed | b2ag f4 | fed2"F7" c=Bcd | 
"Bb" B6 F2 | !>!f4 fed2 | b2ag f4 | fed2"F7" c=Bcd |"Bb" B2b2 b2 z2 :|  