Construct a musical composition utilizing the provided motif and conforming to the specified structure.
X:1
L:1/8
M:2/4
K:Dphr
['F/G/F/E/ DD', 'cB BA'  
X:1
L:1/8
M:2/4
K:Dphr
|:"D" F/G/F/E/ DD | F/G/F/E/ DD | F/D/F/A/"Gm" GG/B/ |"D" A2 d2 |"D" F/G/F/E/ DD | F/G/F/E/ DD | 
 DD"Cm" E/D/C |"D" D4 ::"Gm" DD GG |"D" F>E D2 |"Gm" DD GG |"D" F>E D2 |"Gm" DD GG | B B2 A/G/ | 
"D" A A2 G | FD FA |1"Gm" G2 FE :|2"Gm" G3 A |:"Bb" B2 B2 | B4- | BA/B/ dc | cB BA |"D" A2 A2 | 
 A4- | A^G/A/ cB | BA AG |"Gm" G2 G2 | G4- | GB AG |"D" FE D2 |1"Gm" GG"F" AG |"Bb" A B3 :|2 
"D" DD"Cm" E/D/C |"D" D4 |]  