Craft a musical work adhering to the specified theme and structure.
X:1
L:1/4
M:3/2
K:F
['f2 c d c B/A/ G A', 'f g'  
X:1
L:1/4
M:3/2
K:F
 f2 c d c B/A/ | G A B/A/G/F/ F c | f2 d e/f/ g f/e/ | d e f/e/d/c/ c2 :: c e2 f g a/b/ | 
 a g/f/ e/f/e/d/ ^c a | B g A f G d | ^c d e c d e | f2 c d c B/A/ | G a b/a/g/f/ e d/c/ | 
 d g c f B f | e f g f/e/ f2 :|  