Develop a musical composition incorporating the given motif while adhering to the outlined alphabetical form.
X:1
L:1/8
Q:3/8=100
M:6/8
K:G
['G3 B3 GBc dBG', 'g3 g2 b bab gbg bag f2']  
X:1
L:1/8
Q:3/8=100
M:6/8
K:G
 G3 B3 | GBc dBG | F3 A3 | GBG AFD | G3 B3 | GBc dBG | efg agf | g3 g3 || g2 b bab | gbg bag | 
 f2 a aga | faf agf | gab efg | fga (d/e/f)d | (e/f/g)e (f/g/a)f | g3 g3 |]  