Construct a musical work following the provided guidelines and thematic elements.
X:1
L:1/8
M:4/4
K:A
['ae e/e/e fgag f/f/f ed cefg agfa']  
X:1
L:1/8
M:4/4
K:A
 A3 B Afec | B/B/B cA F2 EF | A3 B Ace=g |1 f/f/f fg fefa :|2 f/f/f fg fefg | agab ae e/e/e | 
 fgag f/f/f ed | cefg agfa | ecac B/B/B AB | eaag ae e/e/e | fgag f/f/f ed | cefg agfa | 
 ecac B/B/B AB ||  