music-tools/Chords prototype1 at master · Manoiumusic/music-tools · GitHub

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pitches = "CDEFGABCDEF"
root = input("Enter chord root(C-G): ")
quality = input("Enter chord quality(M or m): ")

if quality == "M":
 M_whks = "034"
 M_nwks = "125"
 if str(pitches.index(root)) in M_whks:
  t = pitches.index(root) + 2
  f = pitches.index(root) + 4
  third = pitches[t]
  fifth = pitches[f]
 elif str(pitches.index(root)) in M_nwks:
  t = pitches.index(root) + 2
  f = pitches.index(root) + 4
  third = pitches[t] + str("#")
  fifth = pitches[f]


if quality == "m":
 m_whks = "125"
 m_nwks = "034"
 if str(pitches.index(root)) in m_whks:
  t = pitches.index(root) + 2
  f = pitches.index(root) + 4
  third = pitches[t]
  fifth = pitches[f]
 elif str(pitches.index(root)) in m_nwks:
  t = pitches.index(root) + 2
  f = pitches.index(root) + 4
  third = pitches[t] + str("b")
  fifth = pitches[f]


print(root, third, fifth)