Develop diverse chord patterns to increase the melodic richness of the submitted musical excerpt.
|:{efg} a2 e c2 e | agf edc | aff f2 e | fag f2 e | a2 e c2 e | agf edc | 
 d2 e f2 e | f<ac B2 A :: cAA eAA | cAc edc | dBB fBB | dBd fed | 
 cAA eAA | cAc edc | d2 e f2 e | f<ac B2 A :|  
X:1
L:1/8
M:6/8
K:A
|:{efg}"A" a2 e c2 e | agf edc |"Bm" aff f2 e |"D" fag"E7" f2 e |"A" a2 e c2 e | agf edc | 
"D" d2 e f2 e |"Bm" f<ac"E7" B2 A ::"A" cAA eAA | cAc edc |"Bm" dBB fBB | dBd"E7" fed | 
"A" cAA eAA | cAc edc |"D" d2 e f2 e |"Bm" f<ac"E7" B2 A :|  