Construct a musical piece that contains the provided motif and abides by the prescribed alphabetical scheme.
X:1
L:1/4
M:3/4
K:C
['|:!p! .[EG,] .E .E [DG,]2 D/E/ (.[FG,]', 'A/B/c/ d (f e)']  
X:1
L:1/4
M:3/4
K:C
|:!p! .[EG,] .E .E | [DG,]2 D/E/ | (.[FG,] .F .F) | !plus![FG,] E2 | [GG,]2 F | [EG,] (F G) | 
 [GG,] (F E) | !plus![EG,] D2 ::!f! G3/2 A/B/c/ | d (f e) | G3/2 A/B/c/ | d (f e) | 
{fg} .a (g/f/e/d/) | (c/B/)(A/G/)(c/G/)!p! |{A} [GG,] (F!f! E) | ([EG,]2 D/)!p! z/ | 
 (.[EG,] .E .E) | [DG,]2 D/E/ | (.[FG,] .F .F) | !plus![FG,] E2!f! | g2{c} B | c .d/.f/ e | 
 a (f/d/).c/.B/ | (B2 c/) z/ :|  