Construct a musical piece that contains the provided motif and abides by the prescribed alphabetical scheme.
X:1
L:1/8
Q:1/8=180
M:4/4
K:G
['A2 Ac', 'e2 ef d2 de']  
X:1
L:1/8
Q:1/8=180
M:4/4
K:G
 A2 Ac BG G2 | ABcd edcB | A2 Ac BGGB | cABG E2 D2 :| e2 ef d2 de | c2 cd edcd | e2 ef d2 de | 
 cABG E2 D2 :|  