Intervals and Basic Triads
Recognise note distances and build simple three-note chords. ยท 15 min
Understanding intervals
An interval is the distance between two pitches.
Count both the starting and ending letter names. C to D is a second, C to E is a third, and C to G is a fifth.
Intervals can also be described by their number of semitones, which tells you their exact size.
Building a major triad
A triad is a chord made from three notes: a root, a third and a fifth.
The C major triad contains C, E and G. These notes can be played together or one after another.
Practise playing C, E and G on the keyboard, then play all three together if your keyboard supports simultaneous notes.
Tap the keys. Highlighted: C4, E4, G4.
Check yourself
You'll see immediately whether each answer is right, and why.
What is the interval from C to E by letter name?