Develop musical compositions by respecting the prescribed structure and combining the presented musical concept.
X:1
L:1/8
M:4/4
K:D
['F<A A>B d>e f>e', 'f<a a>g f>g'  
X:1
L:1/8
M:4/4
K:D
 F<A A>B d>e f>e | d<B B>A d<B B>A | F<A A>B d>e f>e | g>g f<a e2 d2 :: f<a a>g f>g a2 | 
 b2 b>a g>a b2 | f<a a>g f>g a>f | g<b a<f e2 d2 :|  