Develop musical compositions by respecting the prescribed structure and combining the presented musical concept.
X:1
L:1/4
M:3/4
K:D
['f a f']  
X:1
L:1/4
M:3/4
K:D
 f a f | e/ d3/2 d | a d e | d3 | f a f | e B d | a d B | A3 |]  