Create a musical piece that integrates the provided motif and follows the prescribed alphabetical structure.
X:1
L:1/4
M:4/4
K:Amix
['e3/2 f/ g f', 'A3/2 A/']  
X:1
L:1/4
M:4/4
K:Amix
|: A | e3/2 f/ g f | e d c d | e3/2 f/ g f | e3 A | e3/2 f/ g f | e d c B | A c B G | A3 :: E | 
 A3/2 A/ A A | e d c2 | A3/2 A/ c A | B4 | A3/2 A/ A A | e d c B | A c B G | A3 :|  