Construct a musical piece that contains the provided motif and abides by the prescribed alphabetical scheme.
X:1
L:1/8
M:3/4
K:G
['DG>z(B/A/BG) A4 FG FA>z(c/B/cD) B4 (Bc) Bd>z(g/f/gd)', 'G4 FG (DG)(BGBG) B2 (AFAF) (FA)(cDcD) c2']  
X:1
L:1/8
M:3/4
K:G
|: DG>z(B/A/BG) | A4 FG | FA>z(c/B/cD) | B4 (Bc) | Bd>z(g/f/gd) | e4 dB | cABGAF | G4 :: FG | 
 (DG)(BGBG) | B2 (AFAF) | (FA)(cDcD) | c2 BGBG | BdgBgB | g2 fdfd | fdfgaf | g4 :|  