How to get play back of two-note intervals as chords?

[ReneDiazDiversity]

Another issue with using Tonal JS
How to get play back of two-note intervals as chords

Currently, we can use Chord.getChord('major', 'C') to get the needed notes info to play a chord. But when we run Chord.getChord('3M', 'C') or Chord.getChord('6m', 'C') we get back and empty chord.

Is there a Tonal JS package or function we are missing to get note information with an input argument like '3M', 'C' or '6m', 'C' to return an interval for example 3M for a Major third chordal interval, and to return an interval for example 6m for a minor 6 chordal interval?