May Monthly Musicianship: Minor 6th (m6)
If it's MAY, it must be MINOR 6th MONTH!
A minor 6th (m6) is made up of 8 half-steps. Like its fellow intervals - m2, M2, m3, M3, M6, m7, and M7 - the quality of a 6th will be either minor or major.
Have a look and a listen to the attached handout. It's quick, easy, and good ear training. See if you can hear any of this month's interval in the songs you're singing.