Develop a series of chords that enhance and support the existing tune.
|: AA A2 | BA A2 | cB AG |1 FD D2 :|2 FE DC |: B,>D FF | ED C2 | FF FF | 
 B2 B2 :|  
X:1
L:1/8
M:2/4
K:D
|:"D" AA A2 | BA A2 |"A7" cB AG |1"D" FD D2 :|2"F#" FE DC |:"Bm" B,>D FF |"Em" ED C2 |"F#" FF FF | 
"Bm" B2 B2 :|  