Compose music that adheres to the provided musical structure and theme.
X:1
L:1/8
M:4/4
K:D
['FA A2 BA A2', 'FFAA d2 dd'  
X:1
L:1/8
M:4/4
K:D
 FA A2 BA A2 | FF F2 FF E2 | FA A2 BA A2 | FFFD E2 D2 :| FFAA d2 dd | =c2 cc d2 d2 | FFAA d2 dd | 
 FFFD E2 D2 :|  