Compose a piece of music following the specified structure and theme.
X:1
L:1/8
M:4/4
K:D
['F2 AB']  
X:1
L:1/8
M:4/4
K:D
|: BA{A}FE F2 AB |{c} AF{A}EDFA{c}B/c/d | f z{a} edefBF | ABcdcBAd | ABFE F2 AB | 
{c} AF{A}EDFA{c}B/c/d | f z{a}edBDEF | AFEAFDD z :|  