Major 2nd by Ear

The major 2nd is 2 semitones across. Sung or played, it is one of thirteen answers, and the reason it stays hard is that 3 distances sit close enough to steal it: minor 2nd, minor 3rd and minor 7th. Turn it upside down and the same two notes come back as the minor 7th, which is why that one belongs on the list.

Confusion setminor 2nd · minor 3rd · minor 7th — drill it against these, never on its own. Once it is solid you will start hearing it inside sus2 and add9, which is where the chord rounds pick it up.

Anchor tunes, each with the direction to move your voice — the part of an anchor that actually transfers:

• Frère Jacques — sing it upward from the reference.
• Mary Had a Little Lamb — sing it downward from the reference.