Construct a musical composition utilizing the provided motif and conforming to the specified structure.
X:1
L:1/8
Q:1/4=170
M:7/8
K:C
['^GA^c de f^g a^gf', "d'b e'g ab be ^f^g a3"  
X:1
L:1/8
Q:1/4=170
M:7/8
K:C
|:"Dm"{^g} a3{^g} a2 ^gf | afe ed cB |"Dm" ^GA^c de f^g |"Am" a^gf ed c z |"Dm"{^g} a3{^g} a2 ^gf | 
 afe ed cB |"Am" cdc d2 B^G |"Am" A3- A2- A2 ::"Dm" ^GA^c de f^g | a^gf ed c z |"Dm" a3 a2 ^gf | 
"Am" a^gf ed cB |"Dm" ^GA^c de f^g | a^gf ef ab |"Am" c'ac'"E" be ^f^g |"Am" a3 [eA]4 :: 
"G" gab d'e' d'c' | bgb"C" c'b c'^c' |"G" d'2 c' bg ac' |"C" c'2 d' e'b c'2 |"G" gab d'e' d'b | 
 c'bc'"C" e'g ab |"Am" c'ac'"E" be ^f^g |"Am" a3 [eA]4 :|  