Tetrad Anchored
Major 7thMajor triad plus a major 7th — dreamy and lush
Hear & play major 7th, dominant 7th, and minor 7th melodies from a single anchored root, with all other notes hidden — each melody is drawn from one of the three tetrads at random.
Why
Add the discrimination challenge: which 7th chord? The anchor stays put, so your ear can focus entirely on the quality of what grows from it.