Compose melodies using the provided motif and adhering to the designated musical form.
X:1
L:1/16
Q:1/4=100
M:2/4
K:G
['B4 A4 Bcdc B2A2']  
X:1
L:1/16
Q:1/4=100
M:2/4
K:G
 B4 A4 | Bcdc B2A2 | G2(AB) cdef | g2d2e2c2 | B4 A4 | Bcdc B2A2 | B2AB GABc | d4 D4 |:  