• 1

    Thirds and fifths, ascending and harmonic.

  • 2

    Fourths and sixths, harmonic and ascending.

  • 3

    Seconds and sevenths, ascending and harmonic.

  • 4

    Unison to octave, ascending.

  • 5

    Unison to octave, descending.

  • 6

    Unison to octave, harmonic.

  • 7

    Unison to octave in low range, ascending.

  • 8

    Unison to octave in low range, descending.

  • 9

    Unison to octave in low range, harmonic.