Create musical compositions adhering to the given structure and incorporating the provided musical concept.
X:1
L:1/4
Q:1/4=190
M:4/4
K:D
['f f']  
X:1
L:1/4
Q:1/4=190
M:4/4
K:D
 z2 A A | f f g a | A2 B c | d4- | d2 d d | g g g g | g2 a f | e4- | e2 a g | f f e f | d2 d2 | 
 B B B B | g2 g2 | f f f f | e2 e e | d4 |]  