Create chord structures that will improve the harmony of the provided musical section.
|: BAFA DAFA | BAFA BE E2 | BAFA DAFA | ABde fddA :: faaf a3 f | gfga bg e2 | 
 faaf a3 f | ABde fd d2 | faaf a3 f | gfga bg e2 | f2 fe d2 dB | ABde fedB :|  
X:1
L:1/8
M:4/4
K:D
|:"D" BAFA DAFA | BAFA"Em" BE E2 |"D" BAFA DAFA | ABde fddA ::"D" faaf a3 f |"Em" gfga bg e2 | 
"D" faaf a3 f | ABde fd d2 |"D" faaf a3 f |"Em" gfga bg e2 |"D" f2 fe d2 dB | ABde fedB :|  