Develop harmonious chord sequences that enhance the given musical composition.
A, | DDD FFF | (ED)E D3 | (A3- A2 F) | B A2- A2 A | BdB AGF | 
 GAG FDE | F>GF (ED)E | D3 D2 E | F3 (ED)E | D6 | A3- A2 F | 
 B A2- A2 A | (Bd)B (AG)F | GAG FDE | F>GF (ED)E | D3- D2 |]  
X:1
L:1/8
M:6/8
K:D
 A, |"D" DDD FFF |"A7" (ED)E"D" D3 |"D" (A3- A2 F) |"G" B A2-"D" A2 A |"G" BdB"D" AGF | 
"A7" GAG"Bm" FDE |"D" F>GF"A7" (ED)E |"D" D3 D2 E |"D" F3"A7" (ED)E |"D" D6 |"D" A3- A2 F | 
"G" B A2-"D" A2 A |"G" (Bd)B"D" (AG)F |"A7" GAG"Bm" FDE |"D" F>GF"A7" (ED)E |"D" D3- D2 |]  