Develop a harmonic creation that incorporates the given motif and adheres to the specified alphabetical order.
X:1
L:1/8
M:2/2
K:D
['AG F2 DF AB AG FA DF', 'dB cA BG FG', 'dd fd']  
X:1
L:1/8
M:2/2
K:D
 AG | F2 DF AB AG | FA DF A2 d2 | D3 F AB AF | GF EF G2 :|[K:G] Bc | dB cA BG FG | Ad ^cd A2 B=c | 
 dB cA BG FG | Ac BA G2 Bc | dB cA BG FG | AB cd ef ge | dB cA BG FG | Ac BA G2 ||[K:D] ag | 
 fd dd fd dd | fd fg ab ag | gd dd fd dd | =cd ef g2 :|  