Design a musical work that abides by the outlined structure and integrates the assigned theme.
X:1
L:1/8
Q:1/4=120
M:6/8
K:A
['a2 e c2 e afa edc']  
X:1
L:1/8
Q:1/4=120
M:6/8
K:A
"^Briskly." (3(e/f/g/) | a2 e c2 e | afa edc | aff Tf2 e | faf Tf2 e | a2 e c2 e | afa edc | 
 d2 e f2 e | fac B2 A | cAA cde | cAA edc | dBB def | dBB fed | cAA cde | cAA edc | d2 e f2 e | 
 fa>c B2 A :|  