Craft a musical piece that abides by the prescribed structural guidelines and the given theme.
X:1
L:1/8
M:3/4
K:Amin
['|{d} c2 A2', 'B2 c3 d', 'd e cBAc E/E/E c2 defd gfed'  
X:1
L:1/8
M:3/4
K:Amin
"_Slow" (ed) |{d} c2 A2 eg | a3 g (e/d/c) | Td2 c2 d2 | e3 g de |{d} c2 A2 eg | a3 g e2 | 
 (ge)(ge)(dc) | d6 :: e2 |{d} c2 A2 A2 | A4 B2 | c3 d (e/d/c) | (de)(ge)(de) |{d} c2 A2 B2 | 
 c3 d eg | a3 g (e/d/c) | d4 ::[M:2/2]"_Brisk" e | c>BAg agec | defd gfed | c>BAg agec | 
 d>efg e2 d :: e | cBAc E/E/E c2 | defd gfed | c>BAc GEce | dagf e2 d :|  