Develop musical compositions by respecting the prescribed structure and combining the presented musical concept.
X:1
L:1/4
M:2/2
K:F
['B A G', 'f c'  
X:1
L:1/4
M:2/2
K:F
|: A/>B/"^+" B | c G B A | G F B A |"^+" G A B/A/G/F/ | c2 :: d e | f c d e/f/ | c2 f3/2 e/ | 
"^+" d c _e/d/c/B/ |"^+" A2 d c |"^+" B A c B |"^+" A G B A |"^+" G F A/G/B/A/ | 
"_NB1" F/G/A/B/ c2- | c2 f c | A F f c | A F A/>B/"^+" G | F2 :|  