Construct a musical piece that contains the provided motif and abides by the prescribed alphabetical scheme.
X:1
L:1/8
M:6/8
K:Amix
['d cBA', 'ecA dBG BAA']  
X:1
L:1/8
M:6/8
K:Amix
 d |:"A" cBA ecA |"D" fdf"A" ecA | cBA"D" efg |"G" BGB"^(E7)" BdB |"A" cBA ecA |"D" fdf"A" ecA | 
 cec"G" dBG |"A" BAA A3 :: ce |"A" a2 f"E" ^g2 e |"D" fdf"A" ecA |"D" a2 f"G" =g2 d | 
 BGB"E7" B2 b |"A" afa"E" ^geg |"D" fdf"A" ecA | cec"G" dBG |"A" BAA A :|  