Chord = three or more notes played simultaneously.Click to see full answer. Accordingly, what are 2 notes played together called?In music, a dyad (less commonly, diad) is a set of two notes or pitches that, in particular contexts, may imply a chord. Dyads can be classified by the interval between the notes. When they occur simultaneously, they form a harmonic interval.Beside above, which term means a combination of three or more notes sounded at once? harmony. Term. A chord is. Definition. a combination of three or more tones sounded at once. Similarly one may ask, what is a 3 note chord called? The most basic form of chords is called a Triad, which is created by using 3 notes of a scale in order to bring out the basic harmony between this trio of notes.What is the term for a group of three notes stacked as thirds and played together?Triad. In music, a triad is a set of three notes that can be stacked in thirds.  The term “harmonic triad” was coined by Johannes Lippius in his “Synopsis musicae novae” (1612).