Compose music by following the designated structure and integrating the suggested musical idea.
X:1
L:1/8
Q:1/4=100
M:4/4
K:D
['A2 A2']  
X:1
L:1/8
Q:1/4=100
M:4/4
K:D
 D E | F2 F2 G2 FE | D2 E2 F2 F=G | A2 AA G2 D2 | E6 EE | F2 FF ^G2 G G | A2 A2 B2 BB | 
 c2 AA B3 c | A6 A2 |"^Refrain" A2 FG A2 d2 | d4 c2 BB | A2 DE F2 E2 | D6 |]  