Craft a composition using the given motif while maintaining the musical form outlined by alphabet characters.
X:1
L:1/4
Q:1/2=100
M:4/4
K:Dmin
['a a']  
X:1
L:1/4
Q:1/2=100
M:4/4
K:Dmin
"_Edition 4 onwards" f3/2 e/ d e | f2 f g/f/ | e c c c | c2 c c | d3/2 c/ d e | f2 g f/g/ | 
 a a a a | a2 a g | f f f f | f2 f e/f/ | g g g g | g2 g f/g/ | a a g f | e d e g | ^f d d3/2 c/ | 
 d4 :|  