A Chord is three or more tones played together at one time. This is true of symphonies, choral groups of all kinds, rock bands, country, jazz, pop, gospel, hymns, etc. A song may have more than three chords, but additional chords are usually variations of the basic three. In the same way one counts odd numbers by skipping over even numbers, chords are spelled alphabetically by skipping over even letters. A chord is three or more tones played together at one time.
Most melodic music is built around a basic structure of three chords.
In the same way one counts odd numbers by skipping over even numbers, chords are spelled alphabetically by skipping over even letters.