Develop a musical composition incorporating the given motif and maintaining the required musical form.
X:1
L:1/8
M:6/8
K:G
['G/A/ B2 A B2 g']  
X:1
L:1/8
M:6/8
K:G
"^Andante cantabile" G/A/ | B2 A B2 g | dBG A2 B | E2 D EFG | AFD D2 G/A/ | B2 A B2 g | ^ceg f2 e | 
 f>ed ed^c | d3- d2 d/c/ | B>cB cA>f | g3 d2 c | B>GB c2 d | ede gfe | d2 (3e/f/g/ f2 e | 
 d2 c B/c/dD | EcB ADF | G3- G3 |]  