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For more information, please see full course syllabus of Music Theory
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Major Triads

  • The Root of a Major Triad is the bottom, or tonic note.  
  • The third of a Major Triad is the middle note, or third note of the scale.
  • The fifth of a Major Triad is the top note, or fifth note of the scale.
  • A major triad is composed of a major third beneath a minor third.

Major Triads

Lecture Slides are screen-captured images of important points in the lecture. Students can download and print out these lecture slide images to do practice problems as well as take notes while watching the lecture.

  • Intro 0:00
  • Lesson Objectives 0:06
  • C Major Triad Root 1:00
    • Three Notes Stacked on Top of One Another = Chord, and All Notes are Played at the Same Time
  • C Major Triad Third 2:18
    • What a Third is
    • A Third is Five Half Steps Above the First Note, or the Root
  • C Major Triad Fifth 4:27
  • Finding The Third 6:20
    • The Third is Always the Middle Note of a Chord
  • Finding the Fifth 7:54
    • Count up 4 Half Steps from the 3rd to Find the Fifth
  • Transposing Triads 11:04
    • Transposing
  • Example 1: Triads on Black Keys 13:38
  • Example 2: Triads on White Keys 18:41
  • Example 3: Finding the Root 22:36
  • Example 4: Finding the Third 23:22
  • Example 5: Finding the Fifth 23:40
  • Example 6: Playing a Triad on Every Key 25:22