Craft a musical piece in accordance with the designated structure and theme.
X:1
L:1/8
M:2/4
K:Amix
['B/d/ e2 e/f/e/d/', 'a2 a>g ae'  
X:1
L:1/8
M:2/4
K:Amix
 B/d/ | e2 e/f/e/d/ | eA AB/c/ | d2 d/e/d/B/ | dG G B/d/ | e2 e/f/e/d/ | e>f ga | g/f/e/d/ gB | 
 A2 A :| e/g/ | a2 a>g | ae e>f | g>a g/f/e/d/ | gd de/g/ | a2 a>g | ae ea | g/f/e/d/ gB | 
 A2 A e/g/ | a2 a>g | ae e>f | g>a g/f/e/d/ | gd dg | e/f/g/e/ a/g/f/e/ | ae ea | g/f/e/d/ gB | 
 A2 A |]  