Design a music composition that employs the provided motif and follows the predetermined musical form.
X:1
L:1/16
Q:1/4=100
M:2/4
K:G
['BcBA G2D2 G2B2d2g2', 'A2 d2 gfga b2ag a2d2B2G2 gfga b2ga'  
X:1
L:1/16
Q:1/4=100
M:2/4
K:G
 B2 | BcBA G2D2 | G2B2d2g2 | BcBA G2B2 | c2A2 A4 | BcBA G2D2 | G2B2d2g2 | edcB A2d2 | c2A2 A2 :: 
 d2 | gfga b2ag | a2d2B2G2 | gfga b2ga | a2d2d2f2 | gfga bagf | edef gfed | edcB ABcd | B2G2 G2 :|  