triad

(noun)

a group of three people

Related Terms

Examples of triad in the following topics:

  • Triads in Root Position

    • Harmony in Western music is based on triads.
    • Triads are simple three-note chords built of thirds.
    • So the simplest way to write a triad is as a stack of thirds, in root position.
    • It would, however, change the name of the triad - see Naming Triads.
    • Write a triad in root position using each root given.

  • Triads and Seventh Chords

    • major triad: M3 and P5 above the root (as in do–mi–sol)
    • A C-major triad's lead-sheet symbol is simply C.
    • A C-minor triad is Cm.
    • In other words, triads labeled "I" in any major key will be major triads containing do, mi, and sol.
    • III triads will be minor triads containing mi, sol, and ti, etc.

  • Transitivity

    • Triads allow for a much wider range of possible sets of relations.
    • One approach is to divide the number of transitive triads by the total number of triads of all kinds (720).
    • This shows that 20.28% of all triads are transitive.
    • Perhaps more meaningful is to norm the number of transitive triads by the number of cases where a single link could complete the triad.
    • That is, norm the number of {AB, BC, AC} triads by the number of {AB, BC, anything} triads.

  • Female Athlete Triad: Disordered Eating, Amenorrhea, and Premature Osteoporosis

    • Female athlete triad is a combination of eating disorders, disrupted menstruation, and low bone density.
    • The Triad is a serious illness with lifelong health consequences and can potentially be fatal.
    • For example, if an athlete suffers from one element of the Triad, it is likely that she suffers from the other two components of the triad as well.
    • The Triad is seen more often in aesthetic sports such as these versus ball game sports.
    • Female athletes are often at risk for the female athlete triad

  • Major and Minor Chords

    • For example, if the B in one of the chords above was changed to a B flat, you would still have a G triad, but the chord would now sound very different.
    • The most commonly used triads form major chords and minor chords.
    • If the interval between the root and the third of the chord is the major third (with the minor third between the third and the fifth of the chord), the triad is a major chord.
    • If the interval between the root and the third of the chord is the minor third (and the major third is between the third and fifth of the chord), then the triad is a minor chord.
    • Listen closely to a major triad (http://cnx.org/content/m10890/latest/chomj.mp3) and a minor triad (http://cnx.org/content/m10890/latest/chomin.mp3).

  • Augmented and Diminished Chords

    • Listen closely to an augmented triad (http://cnx.org/content/m10890/latest/choaug.mp3) and a diminished triad (http://cnx.org/content/m10890/latest/chodim.mp3).
    • For example, if, in an augmented G sharp major chord, you rewrite the D double sharp as an E natural, the triad becomes an E augmented chord.
    • Here is a summary of the intervals in triads in root position.

  • Introduction

    • Once you know how to name triads (please see Triads and Naming Triads), you need only a few more rules to be able to name all of the most common chords.
    • You must know your major, minor, augmented and diminished triads.
    • Either have them all memorized, or be able to figure them out following the rules for triads.
    • (See Triads and Naming Triads. )

  • Seventh Chords

    • If you take a basic triad and add a note that is a seventh above the root, you have a seventh chord.
    • There are several different types of seventh chords, distinguished by both the type of triad and the type of seventh used.
    • Seventh (or "dominant seventh") chord = major triad + minor seventh
    • Diminished Seventh chord = diminished triad + diminished seventh (half step lower than a minor seventh)

  • Lead-Sheet and Figured-Bass Symbols

    • The most common lead-sheet chord symbols for triads, seventh chords, and standard alterations orembellishments of those chords, along with corresponding thoroughbass figures.

  • Introduction to Rondo Form

    • The following are the most common lead-sheet chord symbols for triads, seventh chords, and standard alterations or embellishments of those chords, along with corresponding thoroughbass figures.