Compose a piece adhering to the given musical structure and theme.
X:1
L:1/16
Q:1/4=100
M:2/4
K:D
['ddcB A2GG', 'D4 DFFF D2FF D2FF G2E2 CEEE C2EE'  
X:1
L:1/16
Q:1/4=100
M:2/4
K:D
 ddcB | A2GG F2FG | A2B2 ddcB | A2GG F2A2 | D4 :: DFFF | D2FF D2FF | G2E2 CEEE | C2EE C2E2 | D4 :|  