Create a composition using the given motif and incorporating the alphabet-based structure.
X:1
L:1/8
Q:1/4=140
M:2/4
K:G
['b2 ag', 'g2 fe dB B2']  
X:1
L:1/8
Q:1/4=140
M:2/4
K:G
 dgga | b2 ag | b2 ag | fa a2 | dgga | b2 ag | eagf | g4 :: g2 fe | dB B2 | cABG | FA A2 | g2 fe | 
 dB B2 | cAGF | G2 G2 :|  