Construct a musical piece that contains the provided motif and abides by the prescribed alphabetical scheme.
X:1
L:1/8
M:4/4
K:C
['G2 G G3 ABA', 'f2 d']  
X:1
L:1/8
M:4/4
K:C
[M:6/8][K:G] gueg a D da ue[Q:1/8=160]"^D modal" .d | cAG F2 D | G2 G G3 | ABA A2 G | F2 G A2 d | 
 cAG FED | G2 G G3 | ABA B2 G | AFD D2 :| d/e/ | f2 d d2 e | f2 d cBA | B2 G ABc | B2 G AFD | 
 f2 d efg | f2 d cBA | B2 G cAF | G3 G2 :|  