Major 6th by Ear

The major 6th is 9 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 3rd, minor 6th and minor 7th. Turn it upside down and the same two notes come back as the minor 3rd, which is why that one belongs on the list.

Confusion setminor 3rd · minor 6th · minor 7th — drill it against these, never on its own. Once it is solid you will start hearing it inside major 6th chord, minor 6th chord and diminished 7th, 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:

• My Bonnie Lies Over the Ocean — sing it upward from the reference.
• Nobody Knows the Trouble I've Seen — sing it upward from the reference.