Compose music by following the designated structure and integrating the suggested musical idea.
X:1
L:1/8
M:4/4
K:D
['f3 e dcdB ADFD EFGB A3 B', 'f2 df'  
X:1
L:1/8
M:4/4
K:D
 f3 e dcdB | ADFD EFGB | A3 B =cBcd | eA (3Bcd efge | f3 e dcdB | ADFD EFGB | A3 B =cBcd | 
 eA (3Bcd efge || f2 df afdf | f2 df efge | f2 df afdf | eA (3Bcd efge | f2 df afdf | f2 df efge | 
 f2 df afdf | eA (3Bcd efge ||  