Construct a musical piece using the designated motif and sticking to the alphabetical form presented.
X:1
L:1/8
M:2/4
K:D
['DFzA dA F2', 'FAzF AF A2']  
X:1
L:1/8
M:2/4
K:D
 D2 | DFzA dA F2 | GBzd g4 | DFzA dA F2 | E8 | DFzA dA F2 | GBzd g4 | fedf edce | z dAF D4 :: 
 FAzF AF A2 | FAzF EF D2 | GBzG BG B2 | GBzF EF D2 | FAzF AF A2 | FAzd edeg | fedf efgd | 
 z dAF D4 :|  