Compose a piece featuring the specified motif and using an alphabet-based arrangement.
X:1
L:1/8
Q:1/4=100
M:2/4
K:G
['b/a/g/f/ gd BG GB cA', 'dg ge db ba ge dB']  
X:1
L:1/8
Q:1/4=100
M:2/4
K:G
 g | b/a/g/f/ gd | BG GB | cA BG | A>G Eg | b/a/g/f/ gd | BG GB | cA dB | GG/G/ G :: e | dg ge | 
 db ba | ge dB | A>G Ee | dg ge | db ba | ge dB | GG/G/ G :|  