Generate chord structures that harmonize with the provided piece of music.
gfe | d2BB Bgfe | d2cd"^1)" f4 | dffd edc"^1)^1)" f4 | 
 dffd edef | g4 z :|[K:G] z dd | edBd g2dd | edcd f2dd | edcd fdcd | edBd g2dd | edBd g2dd | 
 edcd f2dd | edcd fdef | g4 z :|  
X:1
L:1/16
M:2/4
K:G
 gfe | d2BB Bgfe | d2cd"^1)" f4 | dffd edc"^1)"A | GABA Ggfe | d2BB Bgfe | d2cd"^1)" f4 | 
 dffd edef | g4 z :|[K:G] z dd | edBd g2dd | edcd f2dd | edcd fdcd | edBd g2dd | edBd g2dd | 
 edcd f2dd | edcd fdef | g4 z :|  