Construct a musical composition utilizing the provided motif and conforming to the specified structure.
X:1
L:1/4
Q:1/4=120
M:3/4
K:Amin
['[bgd] [afc]'  
X:1
L:1/4
Q:1/4=120
M:3/4
K:Amin
"Am" [cAE]"G" [cAE] [dBG] |"C" [ecG] [ecG] [c'ge] |"G" [bgd]"F" [bgd] [afc] |"C" [gec]3 | 
"G" [bgd]"F" [bgd] [afc] |"G" [gdB]2 [gdB] |"F" [afc]2"G" [gdB] |"C" [ecG]3 |: 
"Dm" [fdA]2"C" [gec] |"F" [afc]2 [c'af] |"G" [bgd]2"F" [afc] |"C" [gec]3 | 
"G" [bgd]"F" [bgd] [afc] |"E" [^geB]2 [eB^G] |"Am" [aec] [aec] [aec] |1"A" z/ ^c/ e/g/ f/e/ :|2 
"Am" [aec]3 ||  