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:Ador
['A3 G EFGE AGAB c2 ed cAAG', 'Bcdg ec c2 eggf gedB cAAg ag(3fga']  
X:1
L:1/8
M:4/4
K:Ador
 A3 G EFGE | AGAB c2 ed | cAAG EFGf |1 gedB cABG :|2 gedB cA A2 || ec c2 ecgd | BG G2 Bcdg | 
 ec c2 eggf | gedB cAAg | ag(3fga gedB | c2 cG EG G2 | A2 A2 (3Bcd ef | g2 fg gedB ||  