Craft a composition using the given motif while maintaining the musical form outlined by alphabet characters.
X:1
L:1/8
M:4/4
K:G
['G2 GB AGAB', 'degB AGAB']  
X:1
L:1/8
M:4/4
K:G
|: G2 GB AGAB | GEDE A3 B | G2 GB AGAB | G/F/E DE G3 z :: degB AGAB | degd e3 d | degB AGAB | 
 G/F/E DE G4 :|  