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The simplest way to construct 7th chords

To do this tutorial, you need to know your major and minor triads really well, in different inversions, plus your major and minor 7ths, and tones and semitones.

To construct a “dominant” 7th chord (major triad with a minor 7th):

  1. play the root in the LH
  2. play the major triad in the RH in any inversion
  3. move the tonic in the RH down a tone

To construct a minor 7th chord:

  1. play the root in the LH
  2. play the minor triad in the RH in any inversion
  3. move the tonic in the RH down a tone

To construct a major 7th chord:

  1. play the root in the LH
  2. play the major triad in the RH in any inversion
  3. move the tonic in the RH down a semitone