Utilize the provided motif and the alphabetically represented musical sequence to craft an original musical composition.
X:1
L:1/8
M:6/8
K:G
['G (GB)d (dB)d', '(gb)g (af)d']  
X:1
L:1/8
M:6/8
K:G
 G | (GB)d (dB)d | (eg)B{B} A2 G | (GB)d (dB)d | e3 g2 G | (GB)d (dB)d | (eg)B{B} A2 G | 
 (gb)g (af)d | e3 g2 |] g | (gb)g (af)d | (eg)B (BA)G | (gb)g (af)d | e3 g2 g | (gb)g (af)d | 
 (eg)B{B} A2 G | (GB)d (dB)d |{d} e3 g2 |]  