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:Cdor
['GAB c3', 'f2 d c2 B G3']  
X:1
L:1/8
M:6/8
K:Cdor
 GAB | c3 cBc | GBc B2 g | fdB Bcd | c2 B GAB | c3 cdc | (3(B/A/G/ F2) Bdf | fgb gfd | c3 :| cde | 
 fgf f2 d | c2 B G3 | FGB dcB | d2 f cdefgf f2 d | c2 B G3 | cdc AGF | G3 :|  