Formulate a musical piece by utilizing the specified motif and alphabet-based structure.
X:1
L:1/8
M:3/4
K:A
['A2 c3 B A2', '(ef) (ed) (cB) Ac E2 A2 GB', "A4 c2 (eg) (bg) (bg) (ea) (c'a)"]  
X:1
L:1/8
M:3/4
K:A
 A2 | c3 B A2 | c3 B A2 | (dc)(Bc)(dc) | B2 (EG) B2 | d3 c B2 | d3 c B2 | (fe)(^de)(fe) | c4 a2 | 
 a2 g2 a2 | f4 a2 | (ag)(ba)(gf) | e4 c'2 | c'2 (ba)(gf) | e2 (fa)(gb) | (ag) (ab) (c'b) | a4 :: 
 cd | (ef) (ed) (cB) | Ac E2 A2 | GB E2 GB | (AG) (AB) (cd) | (ef) (ed) (cB) | Ac E2 A2 | 
 GB E2 GB | A4 :: c2 | (eg) (bg) (bg) | (ea) (c'a) (c'a) | (eg) (ba) (ga) | ba gf e2 | 
 (ef) (ed) (cB) | (Ac) E2 A2 | (GB) E2 (GB) | A4 :|  