Generate a musical piece using the presented motif and follow the alphabetical structure provided.
X:1
L:1/8
M:3/4
K:A
['[Eca]3 c/a/ B3 a/B/ A3 F E2', '[AEa]5 [ADaf]3 f<e fe ag f<e B2', 'B2 [ADaf]3 f<e fe ag ad3/2 d/c']  
X:1
L:1/8
M:3/4
K:A
|: [Eca]3 c/a/ B3 a/B/ | A3 F E2 F/A/ | A3 TA/ B AB | (Bc) (cd) B2 | c/e/ f2 f (g/a/) g | 
 f e2 (B/c/) A2 | E (E/F/) AF (F/E/) A | (E/G/) [AEa]5 :: [ADaf]3 f<e fe | ag f<e B2 | 
 B ([Be]c) c ([ce]d) | d [ce]3/2 f/e/ B2 |: [ADaf]3 f<e fe | ag ad3/2 d/c | a cB3/2 a B/ | 
 A3 F E2 | E (E/F/)AF (F/E/) A | (E/G/) [AEa]5 :|  