Write a musical work incorporating the specified theme and letter-based framework.
X:1
L:1/8
M:6/8
K:Amix
['A=c^c efe', 'FAB =cBA']  
X:1
L:1/8
M:6/8
K:Amix
|: A=c^c efe | efe =c^ce | A=c^c efe | ecA BBB | A=c^c efe | efe =c^ce | aga ged | ^d=d=c AAA :: 
 FAB =cBA | FAB =cBA | cef gfe | cef gfe | FAB =cBA | FAB =cBA | aga ged | ^d=d=c AAA :|  