Voicings

Cmin7

Drop 3 m7

Drop 3Drop 3
C3 Bb3 Eb4 G4Loading piano…
  1. C3R
  2. Bb3b7
  3. Eb4b3
  4. G45

Guide tones carry the chord's sound: the 3rd (4th on sus chords) and the 7th (or 6th).

Source: Common practice