Produce a music piece that aligns with the mentioned musical structure and theme.
X:1
L:1/8
M:4/4
K:D
['(ag) f>Adf e>fec d>cdB A2 (dc) B>egB', '(dc) B>BBe'  
X:1
L:1/8
M:4/4
K:D
 (ag) | f>Adf e>fec | d>cdB A2 (dc) | B>egB Aagf | e>dcB c2 (ag) | f>Adf e>fec | d>cdB A2 (dc) | 
 B>egB Aagf | e>Ace d2 (ag) | f>Adf e>fec | d>cdB A2 (dc) | B>egB A(agf) | e>fgf e2 (ag) | 
 f>Adf e>fec | d>cdB A2 (dc) | B>egB A(agf) | e>Ace d2 |: (dc) | B>BBe g>gge | B>BB e g3 B | 
 A>AAd f>edB | A>AAd f2 (dc) | B>BBe g>feg | B>BBe gBcB | A>AAB Aagf | e>Ace d2 :|  