common chord
triad

To her surprise, it has struck a common chord in people from vastly different backgrounds.

In a chaotic world that seemed out of tune, baseball was a common chord.

There's a common chord of fantasy that Ludwig continues to strike.

Because it is unimorphic, common chords tend to fall close together.

Such common chords are useful in modulating from one key to another.

A common borrowed chord from a parallel major key is the Picardy third.

It is also a common chord in jazz and ragtime music.

A closely related key can be defined as one that has many common chords.

Candidates across the nation are still striking certain common chords.