Craft a musical composition with the supplied motif and conforming to the necessary format.
X:1
L:1/8
M:2/4
K:G
['dG Bc d2 de f/e/d', 'dg ga b2 ag fd', 'dG Bc d2 de f/e/d', 'ag fd'  
X:1
L:1/8
M:2/4
K:G
 d/e/ | dG Bc | d2 de | f/e/d cB | AB cd/e/ | dG Bc | d2 de | f/e/d cA | AG G :: z | dg ga | 
 b2 ag | fd de | fg af | dg ga | b2 ag | fd cA | AG G ::"^variations" d/e/ | dG Bc | d2 de | 
 f/e/d cB | AB cd/e/ | dG Bc | d2 de | f/e/d cA | AG G :: z | dg ga | b2 ag | fd de | fg af |1 
 dg ga | b2 ag | fd cA | AG G :|2 g/a/b ag | fd d>e | fd cA | AG G ||  