Create a fitting sequence of chord changes that enhance the given musical piece.
"^Vocal:" F3 GF E2 | D7- | D7 | [AF]2 [cA] [BG][AF] [GE][FD]/[GE]/ | [AF]7 |: 
 [dB]2 [dB] [dB]2 [dB]2 | [dB][cA][dB] [ec]2 [ec][dB] | [cA]2 [cA] [cA]2 [cA]2 | 
 [cA][BG][cA] [dB]2 z2 | [BG]2 [BG] [BG]2 [cA][dB] | [ec]2 [dB] [cA]2 [BG]2 | 
 [AF]2 [AF] [BG][AF] [BG][cA] | [AF]2 [cA] [BG][AF] [GE]2 | [FD]7- | [FD]7 :: 
"^Instrumental interlude:" ABG A2 GF | FGE F2 ED |1 DEC DE FG | ABG A2 z2 :|2 DEC DE FC | 
 D7- | D7 |]:"^Alternate interlude:" c2 d cB A2 | B2 c BA G2 | F2 G AB AG |1 
 F2 G A2 z2 :|2 F2 E D4 |]  
X:1
L:1/8
M:7/8
K:Dphr
"^Vocal:""D" F3 GF E2 | D7- | D7 | [AF]2 [cA] [BG][AF] [GE][FD]/[GE]/ | [AF]7 |: 
"Gm" [dB]2 [dB] [dB]2 [dB]2 | [dB][cA][dB]"Cm" [ec]2 [ec][dB] |"F" [cA]2 [cA] [cA]2 [cA]2 | 
 [cA][BG][cA]"Bb" [dB]2 z2 |"Gm" [BG]2 [BG] [BG]2 [cA][dB] |"Cm" [ec]2 [dB] [cA]2 [BG]2 | 
"D" [AF]2 [AF] [BG][AF] [BG][cA] | [AF]2 [cA]"Cm" [BG][AF] [GE]2 |"D" [FD]7- | [FD]7 :: 
"^Instrumental interlude:""D" ABG A2 GF | FGE F2 ED |1 DEC DE FG | ABG A2 z2 :|2"Cm" DEC DE FC | 
"D" D7- | D7 |]:"^Alternate interlude:""D" c2 d cB A2 |"Gm" B2 c BA G2 |"D" F2 G AB AG |1 
"D" F2 G A2 z2 :|2"Cm" F2 E"D" D4 |]  