Craft a musical piece that follows the outlined chord structure.
'Dm', 'C', 'Dm', 'C', 'Dm', 'D', 'Cm', 'D', 'Gm', 'D', 'Gm', 'D', 'Cm', 'D', 'D', 'Cm', 'D'  
X:1
L:1/8
M:4/4
K:Ephr
[K:Ddor]"^Intro" |:"Dm" D2 D2"C" C2 (DE) |"Dm" F2 G2 (FG) (FE) | D2 D2"C" CC B,C |"Dm" D8 :: 
[K:Gmin]"D" DA AB AB AG |"Cm" ^FG FE DC"D" D2 :| D/ |"Gm" DG GG AG"D" A2 | DA Ac"Gm" B/A/G"D" A2 | 
"Cm" ^FF F2 G2 FE |"D" D8 |"D" [^FA][FA] [FA]2"Cm" [GB]2 [FA][EG] |"D" [A^FD]8 |]  