Design chord configurations to expand the harmonic depth of the submitted musical passage.
a | e2 c cBc | e2 c c2 a | e2 c cBc | A2 F F2 a | e2 c cBc | Ace aga | fed cdB | 
 A2 F F2 :: G | ABA cBc | A2 F F2 A | GAB BcA | G2 E E2 G | ABA cBc | 
 Ace aga | fed cdB | A2 F F2 :|  
X:1
L:1/8
M:6/8
K:A
 a |"A" e2 c cBc | e2 c c2 a | e2 c cBc |"F#m" A2 F F2 a |"A" e2 c cBc | Ace aga |"D" fed"Bm" cdB | 
"F#m" A2 F F2 :: G |"F#m" ABA cBc | A2 F F2 A |"E" GAB"B7" BcA |"E" G2 E E2 G |"A" ABA cBc | 
 Ace aga |"D" fed"Bm" cdB |"F#m" A2 F F2 :|  