Create a musical composition following the given alphabetical pattern and incorporating the provided motif.
X:1
L:1/8
M:4/4
K:G
['dB GB', 'ag f2 e2']  
X:1
L:1/8
M:4/4
K:G
|: dB GB dB GB | d2 gg g2 g2 | dB GB dB GB | B2 AA A2 A2 | dB GB dB GB | d2 gg g2 ga | 
 b2 bg a2 af | g2 g2 g4 ::[K:D] f2 d2 f2 ag | f2 e2 e4 | f2 df a2 gf | ed cB B2 A2 | f2 d2 f2 ag | 
 f2 e2 e2 de | fa fd eg ec | d2 d2 d4 :|  