Design a music piece by incorporating the given alphabetic pattern and motif.
X:1
L:1/8
M:4/4
K:D
['AA GB', 'Ac BA']  
X:1
L:1/8
M:4/4
K:D
|: E | AA GB AG EE | AA GB A3 E | AA GB AG Ec | BA BG A3 :| B | cc Ac BA GA | GA GF E3 E | 
 AA GB AG EE | AA GB A3 B | cc Ac BA Gd | ed cA B4 | cB Ac BA Gc | BA BG A3 ||  