Craft a musical piece that abides by the prescribed structural guidelines and the given theme.
X:1
L:1/8
M:4/4
K:A
['ABcd eAce', 'aA (3AAA cAce', 'cB Aece Aece fdBc d2'  
X:1
L:1/8
M:4/4
K:A
 ABcd eAce | fedf edcB | ABcd eAce |1 fdBc d2 cB :|2 fdBc defg || aA (3AAA cAce | a2 ag fefg | 
 aA (3AAA cAce | dcBc defg | aA (3AAA cAce | a2 ag fefg | afge f2 ec | dcBc d2 cB || Aece Aece | 
 Aece d2 cB | Aece Aece | fdBc d2 cB :|  