Craft a musical piece in accordance with the designated structure and theme.
X:1
L:1/8
M:4/4
K:A
['c2 ce', 'f3 a e2 ce fedf'  
X:1
L:1/8
M:4/4
K:A
|: a3 e c2 ce | agae BAAA | agae c2 ce | fecA BcAe :| f3 a e2 ce | fedf eAce | fffa efaf | 
 eAcA cBBB | f3 a e2 ce | fedf fece | f3 f fefa | g3 g gefg ||  