Develop a musical piece employing the provided motif and an alphabet-based structure.
X:1
L:1/8
M:2/2
K:A
['d cAce{g} a2 ed', 'a2 Aa caAa']  
X:1
L:1/8
M:2/2
K:A
 d |"A" cAce{g} a2 ed | cAEA"E7" GB-Bd |"A" cAce ae"D"fd |"E7" ecdB"A" cAA || d | 
"A" cAce{g} a2 ed | cAEA"E7" GB-BG |"A" Ac"E"Bd"A" ce"D"df |"E7" ecdB"A" cAA :: g |"A" a2 Aa caAa | 
 caAa"E7" BcdB |"A" a2 Aa caAa |"E7" BcdB"A" cAA || g |"A" a2 Aa caAa | caAa"E7" BcdB | 
"A" cA"E"dB"A" eagf |"E7" ecdB"A" cAA :|  