Craft a musical piece in accordance with the designated structure and theme.
X:1
L:1/4
M:4/4
K:C
['e/d/e/f/ e e/f/ g g', 'e2 c2 f e d B'  
X:1
L:1/4
M:4/4
K:C
|: e/d/e/f/ | e e/f/ g g | e c e/d/e/f/ | e e/f/ g g |"^+" e2 :: e2 | c2 f e | d B c c | e2 c2 | 
 f e d B | c2 :|  