Develop a musical composition incorporating the given motif while adhering to the outlined alphabetical form.
X:1
L:1/8
Q:1/8=300
M:6/8
K:G
['GAB- BAG Bde dBd gfg- ged efg', 'g3 d6 dBe dBG g6 geg ged']  
X:1
L:1/8
Q:1/8=300
M:6/8
K:G
|: GAB- BAG | Bde dBd | gfg- ged | efg a3 | gab age | gag edB | deg edB | egf g3 :: d6 | dBe dBG | 
 g6 | geg ged | g3- (gb)a | geg edB | deg- ged | egf g3 :|  