Develop a harmonic creation that incorporates the given motif and adheres to the specified alphabetical order.
X:1
L:1/16
M:2/4
K:Bb
['B2ba gfdB ABcB', 'EGGG cGeG']  
X:1
L:1/16
M:2/4
K:Bb
 FG | B2ba gfdB | ABcB AFGA | BAcB dced | fgfd ecAc | B2ba gfdB | ABcB AGFE | DBEB FBGB | 
 ABcA B2 :: FE | DFFF BFdF | EGGG cGeG | B2gf edcB | defg ecAF | DFFF BGdB | EGGG cGeG | 
 DBEB FBGB | ABcA B2 :|  