Develop a musical composition incorporating the given motif while adhering to the outlined alphabetical form.
X:1
L:1/4
M:4/4
K:G
['D G']  
X:1
L:1/4
M:4/4
K:G
 D | G G A/A/ A | d2 A G | d d d/c/ _B | A2 z A/_B/ | c A d/c/ _B | A3/2 G/ F D | G F G A | c2 A2 | 
 _B G A/G/ F | G2 z |]  