Develop a musical composition utilizing the presented motif and adhering to the required structure.
X:1
L:1/8
M:4/4
K:G
['', 'BE E2', 'c/B/A GA'  
X:1
L:1/8
M:4/4
K:G
 d2 c |: BE E2 DEGA | BE E2 d2 BA | BE E2 DEGA | BedB ABGA :: B2 ed c/B/A GA | d2 ef g2 ag | 
 eged c/B/A GA | BedB ABGA :|  