Construct a melodic piece using the alphabet-based musical sequence and the given motif.
X:1
L:1/8
M:4/4
K:D
['Ad fd ed', 'FA BA dA B2']  
X:1
L:1/8
M:4/4
K:D
 Ad fd ed ef | af df a f2 d |1 Ad fd ed e2- | ed BA FE D2 :|2 af ed BA F2 | A,B, DE F2 FE || 
 FA BA dA B2 | dA BA d B2 A | FA BA dA B2 | af ed FE D2 | FA BA dA B2 | dA BA B3 A | af ed BA F2 | 
 A,B, DE F2 E2 ||  