Create musical pieces following the given structure and incorporating the suggested musical concept.
X:1
L:1/4
M:4/4
K:F
['A G']  
X:1
L:1/4
M:4/4
K:F
 F | A A/A/ A G | F G A f | e d d3/2 c/ | c2 z | A/c/ | d d d A | c (d3/4 e/4) f3/2 c/ | 
 (d/c/) A A G | F2 z ||  