Craft a musical piece that abides by the prescribed structural guidelines and the given theme.
X:1
L:1/16
M:3/4
K:Dmin
['aba^g g4', 'fed^c e4'  
X:1
L:1/16
M:3/4
K:Dmin
 abag fgfe d2>e2 | f2ed ^cdec A4 | d2>^c2 d2e2 f2g2 |1 aba^g g4 a4 :|2 aba^g g4 a2>e2 |: 
 fefg a2f2 f2f2 | f2ef g2ag fed^c | defg a2f2 f2f2 | f2ef g2ag fed^c | d2>e2 fefg a2>g2 |1 
 fed^c e4 d2>e2 :|2 fed^c e4 d4 ||  