Develop a musical composition by utilizing the given alphabetic notation and supplied motif.
X:1
L:1/8
Q:3/8=120
M:6/8
K:G
['G2 A B2 c dBG dBG', 'd2 e f2 g afd afd']  
X:1
L:1/8
Q:3/8=120
M:6/8
K:G
 G2 A B2 c | dBG dBG | F2 G A2 B | cAF cAF | G2 A B2 c | dBG dBG | AcB AGF | G3 g3 :: d2 e f2 g | 
 afd afd | ^c2 d e2 f | ge^c ge^c | d2 e f2 g | afd afd | egf ed^c | d3!D.C.! d3 :|  