Construct a musical piece that contains the provided motif and abides by the prescribed alphabetical scheme.
X:1
L:1/4
M:3/4
K:Amix
['A2 c e2', 'f/<g/ a3/2 g/ f e2 a']  
X:1
L:1/4
M:3/4
K:Amix
|: e | A2 c | e2 c | B2 B | A2 c | e2 f | a2 c | d3 | e2 f/<g/ | a3/2 g/ f | e2 a | A2 B | c2 d | 
 e2 f | d2 B | A3 | A2 :: f/<g/ | a3/2 g/ f | e2 a | c2 B | A2 c | e2 f | a2 c | d3 | e2 f/<g/ | 
 a3/2 g/ f | e2 a | A2 B | c2 d | e2 f | d2 B | A3 | A2 :|  