Construct a musical piece using the designated motif and sticking to the alphabetical form presented.
X:1
L:1/8
M:4/4
K:D
['a2 ge']  
X:1
L:1/8
M:4/4
K:D
 dcAF G2 FG | Ad d2 fded | dcAF G2 FG | AFGE FD D2 | dcAF FD D2 | Ad d2 fded | dcAF G2 FG | 
 AFGE FD D2 | f3 a gfed | (3Bcd ef g2 fe | defg a2 ge | a2 ge fd d2 | f3 a gfed | (3Bcd ef g2 fe | 
 a2 ge a2 ge | a2 ge fd d2 |]  