Design a musical creation that involves the supplied motif and respects the established alphabetical structure.
X:1
L:1/8
M:2/4
K:D
['f2 d2']  
X:1
L:1/8
M:2/4
K:D
|: A |"D" dd dd | d2 cd |"A" eA AB | A2 cd | ee ee | a2 ag |"D" fd dd | dA Bc | d2 a2 |"D7" f2 d2 | 
"G" B>B BB | g2 g2 |"D" f>f aa | f2 d2 |"A" ee cc |"D" d2 d :|  