Devise a range of chord patterns to boost the harmonic depth of the chosen musical work.
|: a2 a3/2 f/ | e c"^(D)" a3/2 f/ | e c"^(D)" a3/2 f/ | e c B A | a2 a3/2 f/ | 
 e c"^(D)" a3/2 f/ | e c B3/2 c/ | B A A2 :: c e e d/c/ | d f f e/d/ | 
 c e e3/2 e/ | c B B2 | c e e d/c/ | d f f e/d/ | c e B3/2 c/ | 
 B A A2 :|  
X:1
L:1/4
M:2/2
K:A
|:"A" a2 a3/2 f/ |"A" e c"^(D)" a3/2 f/ |"A" e c"^(D)" a3/2 f/ |"A" e c"E7" B A |"A" a2 a3/2 f/ | 
"A" e c"^(D)" a3/2 f/ |"A" e c"E7" B3/2 c/ |"E7" B A"A" A2 ::"A" c e e d/c/ |"D" d f f e/d/ | 
"A" c e e3/2 e/ |"E7" c B B2 |"A" c e e d/c/ |"D" d f f e/d/ |"A" c e"E7" B3/2 c/ | 
"E7" B A"A" A2 :|  