Compose a musical piece based on the given motif and alphabet representation.
X:1
L:1/8
M:4/4
K:Ab
['(A, B,)', '[E,G,]2 A,2']  
X:1
L:1/8
M:4/4
K:Ab
 A,2 [A,C]2 [A,C]3 [D,D] | (C B,) (A, B,) [A,,A,]2 [A,,A,]2 | [E,G,]2 [E,G,]2 [E,G,]3 [E,A,] | 
 (G, A,) (B, A,) [E,G,]4 | A,2 [A,C]2 [A,C]3 [D,D] | (C B,) (A, B,) [F,A,]2 [E,G,]2 | 
 A,2 [C,A,]2 (A, B,) (E D) | [E,C]2 [E,B,]2 [A,,A,]4 || [E,G,]2 [E,G,]2 [E,G,]3 [E,A,] | 
 (B, A,) (G, A,) [E,B,]2 [E,G,]2 | A,2 A,2 A,3 [A,C] | B,2 [B,,B,]2 [E,B,]4 | 
 A,2 [A,C]2 [A,C]3 [D,D] | (C B,) (A, B,) [F,A,]2 [E,G,]2 | A,2 [C,A,]2 (A, B,) (E D) | 
 [E,C]2 [E,B,]2 [A,,A,]4 |]  