Identifying triads quickly and accurately is an essential requirement if you want to be able to analyze and understand the music you interpret or to which you listen. Therefore, it is important to develop that skill which involves being able to identify intervals and particularly thirds and fifths.
Using your knowledge about intervals, you can identify triads quickly. One way to do it is identifying the third and then the fifth. The following table shows the combination of intervals that is characteristic of each type of triad:
You can also identify the two thirds building the chord. The following table shows the combination of intervals characteristic of each type of triad:
|Triad||First 3rd.||Second 3rd.||Examples|
Knowing well the type of triad built on each scale degree can help you identify triads rapidly.
A few examples:
C minor . Here, the key is B flat major. The chord is formed on the second degree. Triads built on the second degree of major scales are always minor triads.
C# major . Here, there are two ways of identifying the type of triad.
See C > Chord for related entries.