Construct a musical piece that contains the provided motif and abides by the prescribed alphabetical scheme.
X:1
L:1/8
M:6/8
K:D
['A ded def d e2 A e[fd]e', 'A2 a aba aba agf g2 e']  
X:1
L:1/8
M:6/8
K:D
 A | ded def | !plus!e2 d e2 A | e[fd]e efg | !plus!f2 e f2 A | fgf fga | g2 f e2 e | eae edc | 
 B2 A A2 :: a | aba aba | agf g2 e | gag gag | gfe f2 d | fgf fgf | fe^d e2 a | dcd efg | e3 d2 :|  