Formulate a musical piece by utilizing the specified motif and alphabet-based structure.
X:1
L:1/8
Q:1/8=180
M:6/8
K:A
['a2 A AGA', 'Ace ecA', 'a2 A AGA']  
X:1
L:1/8
Q:1/8=180
M:6/8
K:A
 a2 A AGA | FAA EAA | a2 A AGA | FBA GFE | a2 A AGA | FAA EAA | FAA BAB | cAA A3 |: Ace ecA | 
 Ace ecA | Ace ecA | dcd B2 z | Ace ecA | Ace efg | agf edc | dcd B3 :| a2 A AGA | FAA EAA | 
 a2 A AGA | FBA GFE | a2 A AGA | FAA EAA | FAA BAB | cAA A3 ||  