Develop a musical piece employing the provided motif and an alphabet-based structure.
X:1
L:1/8
M:4/4
K:A
['', 'c3 A e2 b2 a4 (a>g) f<e', 'c>d e<a']  
X:1
L:1/8
M:4/4
K:A
 AB |: c3 A e2 b2 | a4 (a>g) f<e | (d2 d>c) e>d c<B | A>B c<d B>A G<E | c3 A e2 b2 | a4 (a>g) f<e | 
 d>c B<A c>B (AG) |1 A6 AB :|2 A6 AB |: c>d e<a B4 | (A>B) c<d B>A G<E | c>d e<a B2 (ef/g/) | 
 a2 g2 f2 (A/f/e/d/) | c>d e<a B4 | (A>B) c<d B>A G<E | F2 (DE) (C/E/A) d2 |1 c2 (B>A) A2 AB :|2 
 c2 (B>A) A4 ||  