Descending intervals sound the same, but backwards. This just means two of the same note. This process is called inversion . Chords Chords are groups of three or more notes played or sung simultaneously. Each different kind of chord has a distinctive sound, but this is the point where words fail to communicate the necessary information.
Every chord is built on a pitch called the root.
The particular sound of a chord depends on the intervals between the root and the other notes of the chord. Chords are named by the root and the sound quality, with romantic names like C major, F minor, or B-flat diminished seventh. Triads The simplest kind of chord is called a triad . It consists of three notes. The sound of a triad differs depending on the intervals between the notes.